PCA9532 Datasheet by NXP USA Inc.

View All Related Products | Download PDF Datasheet
1. General description
The PCA9532 is a 16-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in
256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications.
The PCA9532 contains an internal oscillator with two user programmable blink rates and
duty cycles coupled to the output PWM. The LED brightness is controlled by setting the
blink rate high enough (> 100 Hz) that the blinking cannot be seen and then using the duty
cycle to vary the amount of time the LED is on and thus the average current through the
LED.
The initial setup sequence programs the two blink rates/duty cycles for each individual
PWM. From then on, only one command from the bus master is required to turn individual
LEDs ON, OFF, BLINK RATE 1 or BLINK RATE 2. Based on the programmed frequency
and duty cycle, BLINK RATE 1 and BLINK RATE 2 will cause the LEDs to appear at a
different brightness or blink at periods up to 1.69 second. The open-drain outputs directly
drive the LEDs with maximum output sink current of 25 mA per bit and 200 mA per
package (100 mA per octal).
To blink LEDs at periods greater than 1.69 second the bus master (MCU, MPU, DSP,
chip set, etc.) must send repeated commands to turn the LED on and off as is currently
done when using normal I/O expanders like the NXP Semiconductors PCF8575 or
PCA9555. Any bits not used for controlling the LEDs can be used for General Purpose
parallel Input/Output (GPIO) expansion, which provides a simple solution when additional
I/O is needed for ACPI power switches, sensors, push-buttons, alarm monitoring, fans,
etc.
The active LOW hardware reset pin (RESET) and Power-On Reset (POR) initializes the
registers to their default state, all zeroes, causing the bits to be set HIGH (LED off).
Three hardware address pins on the PCA9532 allow eight devices to operate on the same
bus.
2. Features and benefits
16 LED drivers (on, off, flashing at a programmable rate)
Two selectable, fully programmable blink rates (frequency and duty cycle) between
0.591 Hz and 152 Hz (1.69 second and 6.58 milliseconds)
256 brightness steps
Input/outputs not used as LED drivers can be used as regular GPIOs
Internal oscillator requires no external components
I2C-bus interface logic compatible with SMBus
Internal power-on reset
PCA9532
16-bit I2C-bus LED dimmer
Rev. 4.1 — 22 August 2016 Product data sheet
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 2 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
Noise filter on SCL/SDA inputs
Active LOW reset input
16 open-drain outputs directly drive LEDs to 25 mA
Controlled edge rates to minimize ground bounce
No glitch on power-up
Supports hot insertion
Low standby current
Operating power supply voltage range of 2.3 V to 5.5 V
0 Hz to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per
JESD22-A115 and 1000 V CDM per JESD22-C101
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
Packages offered: SO24, TSSOP24, HVQFN24
3. Ordering information
4. Block diagram
Table 1. Ordering information
Tamb =
40
Cto+85
C.
Type number Topside
mark Package
Name Description Version
PCA9532D PCA9532D SO24 plastic small outline package; 24 leads; body width 7.5 mm SOT137-1
PCA9532PW PCA9532PW TSSOP24 plastic thin shrink small outline package; 24 leads;
body width 4.4 mm SOT355-1
PCA9532BS 9532 HVQFN24 plastic thermal enhanced very thin quad flat package; no leads;
24 terminals; body 4 40.85 mm SOT616-1
Only one I/O shown for clarity.
Fig 1. Block diagram of PCA9532
A0 A1 A2
002aae521
I
2
C-BUS
CONTROL
INPUT
FILTERS
PCA9532
POWER-ON
RESET
SCL
SDA
V
DD
V
SS
LEDn
RESET
OSCILLATOR PRESCALER 1
REGISTER
PRESCALER 0
REGISTER
PWM1
REGISTER
PWM0
REGISTER
INPUT
REGISTER
LED SELECT (LSn)
REGISTER
BLINK0
BLINK1
0
1
jjjjjjjjjjjj O EEEEEEEEEEEE LLLLLLLL CCCCCC jjjjjjjjjjjj UUMUUU flflflflflfl 333333 EEEEEEEEEEEE LLLLLLLL
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 3 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
5. Pinning information
5.1 Pinning
Fig 2. Pin configuration for SO24 Fig 3. Pin configuration for TSSOP24
Fig 4. Pin configuration for HVQFN24
PCA9532D
A0 V
DD
A1 SDA
A2 SCL
LED0 RESET
LED1 LED15
LED2 LED14
LED3 LED13
LED4 LED12
LED5 LED11
LED6 LED10
LED7 LED9
V
SS
LED8
002aae518
1
2
3
4
5
6
7
8
9
10
11
12
14
13
16
15
18
17
20
19
22
21
24
23
V
DD
SDA
SCL
RESET
LED15
LED14
LED13
LED12
LED11
LED10
LED9
LED8
A0
A1
A2
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
V
SS
PCA9532PW
002aae519
1
2
3
4
5
6
7
8
9
10
11
12
14
13
16
15
18
17
20
19
22
21
24
23
002aae520
PCA9532BS
Transparent top view
LED11
LED4
LED5
LED12
LED3 LED13
LED2 LED14
LED1 LED15
LED0 RESET
LED6
LED7
VSS
LED8
LED9
LED10
A2
A1
A0
VDD
SDA
SCL
terminal 1
index area
613
514
4 15
3 16
2 17
118
7
8
9
10
11
12
24
23
22
21
20
19
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 4 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
5.2 Pin description
[1] HVQFN24 package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must
be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board
level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad
on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the
PCB in the thermal pad region.
Table 2. Pin description
Symbol Pin Description
SO24,
TSSOP24 HVQFN24
A0 1 22 address input 0
A1 2 23 address input 1
A2 3 24 address input 2
LED0 4 1 LED driver 0
LED1 5 2 LED driver 1
LED2 6 3 LED driver 2
LED3 7 4 LED driver 3
LED4 8 5 LED driver 4
LED5 9 6 LED driver 5
LED6 10 7 LED driver 6
LED7 11 8 LED driver 7
VSS 12 9[1] supply ground
LED8 13 10 LED driver 8
LED9 14 11 LED driver 9
LED10 15 12 LED driver 10
LED11 16 13 LED driver 11
LED12 17 14 LED driver 12
LED13 18 15 LED driver 13
LED14 19 16 LED driver 14
LED15 20 17 LED driver 15
RESET 21 18 reset input (active LOW)
SCL 22 19 serial clock line
SDA 23 20 serial data line
VDD 24 21 supply voltage
Figure 1 “Block diagram of PCA9532" Figure 5
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 5 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
6. Functional description
Refer to Figure 1 “Block diagram of PCA9532.
6.1 Device address
Following a START condition, the bus master must output the address of the slave it is
accessing. The address of the PCA9532 is shown in Figure 5. To conserve power, no
internal pull-up resistors are incorporated on the hardware selectable address pins and
they must be pulled HIGH or LOW.
The last bit of the address byte defines the operation to be performed. When set to logic 1
a read is selected, while a logic 0 selects a write operation.
6.2 Control register
Following the successful acknowledgement of the slave address, the bus master will send
a byte to the PCA9532, which will be stored in the Control register.
The lowest 4 bits are used as a pointer to determine which register will be accessed.
If the Auto-Increment (AI) flag is set, the four low order bits of the Control register are
automatically incremented after a read or write. This allows the user to program the
registers sequentially. The contents of these bits will rollover to ‘0000’ after the last
register is accessed.
When Auto-Increment flag is set (AI = 1) and a read sequence is initiated, the sequence
must start by reading a register different from the INPUT0 register
(B3B2B1B00000).
Only the 4 least significant bits are affected by the AI flag. Unused bits must be
programmed with zeroes.
Fig 5. PCA9532 slave address
002aac505
1 1 0 0 A2 A1 A0 R/W
fixed
slave address
hardware
selectable
Reset state: 00h
Fig 6. Control register
002aae523
0 0 0 AI B3 B2 B1 B0
register address
Auto-Increment flag
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 6 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
6.2.1 Control register definition
6.3 Register descriptions
6.3.1 INPUT0 - Input register 0
The INPUT0 register reflects the state of the device pins (inputs 0 to 7). Writes to this
register will be acknowledged but will have no effect.
Remark: The default value ‘X’ is determined by the externally applied logic level (normally
logic 1) when used for directly driving LED with pull-up to VDD.
6.3.2 INPUT1 - Input register 1
The INPUT1 register reflects the state of the device pins (inputs 8 to 15). Writes to this
register will be acknowledged but will have no effect.
Remark: The default value ‘X’ is determined by the externally applied logic level (normally
logic 1) when used for directly driving LED with pull-up to VDD.
Table 3. Register summary
B3 B2 B1 B0 Symbol Access Description
0 0 0 0 INPUT0 read only input register 0
0 0 0 1 INPUT1 read only input register 1
0 0 1 0 PSC0 read/write frequency prescaler 0
0 0 1 1 PWM0 read/write PWM register 0
0 1 0 0 PSC1 read/write frequency prescaler 1
0 1 0 1 PWM1 read/write PWM register 1
0 1 1 0 LS0 read/write LED0 to LED3 selector
0 1 1 1 LS1 read/write LED4 to LED7 selector
1 0 0 0 LS2 read/write LED8 to LED11 selector
1 0 0 1 LS3 read/write LED12 to LED15 selector
Table 4. INPUT0 - Input register 0 description
Bit 7 6 5 4 3 2 1 0
Symbol LED7 LED6 LED5 LED4 LED3 LED2 LED1 LED0
Default XXXXXXXX
Table 5. INPUT1 - Input register 1 description
Bit 7 6 5 4 3 2 1 0
Symbol LED15 LED14 LED13 LED12 LED11 LED10 LED9 LED8
Default XXXXXXXX
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 7 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
6.3.3 PCS0 - Frequency Prescaler 0
PSC0 is used to program the period of the PWM output.
The period of BLINK0 = (PSC0 + 1) / 152.
6.3.4 PWM0 - Pulse Width Modulation 0
The PWM0 register determines the duty cycle of BLINK0. The outputs are LOW (LED on)
when the count is less than the value in PWM0 and HIGH (LED off) when it is greater. If
PWM0 is programmed with 00h, then the PWM0 output is always HIGH (LED off).
The duty cycle of BLINK0 = PWM0 / 256.
6.3.5 PCS1 - Frequency Prescaler 1
PSC1 is used to program the period of the PWM output.
The period of BLINK1 = (PSC1 + 1) / 152.
6.3.6 PWM1 - Pulse Width Modulation 1
The PWM1 register determines the duty cycle of BLINK1. The outputs are LOW (LED on)
when the count is less than the value in PWM1 and HIGH (LED off) when it is greater. If
PWM1 is programmed with 00h, then the PWM1 output is always HIGH (LED off).
The duty cycle of BLINK1 = PWM1 / 256.
Table 6. PSC0 - Frequency Prescaler 0 register description
Bit 7 6 5 4 3 2 1 0
Symbol PSC0[7] PSC0[6] PSC0[5] PSC0[4] PSC0[3] PSC0[2] PSC0[1] PSC0[0]
Default 00000000
Table 7. PWM0 - Pulse Width Modulation 0 register description
Bit 7 6 5 4 3 2 1 0
Symbol PWM0
[7] PWM0
[6] PWM0
[5] PWM0
[4] PWM0
[3] PWM0
[2] PWM0
[1] PWM0
[0]
Default 10000000
Table 8. PSC1 - Frequency Prescaler 1 register description
Bit 7 6 5 4 3 2 1 0
Symbol PSC1[7] PSC1[6] PSC1[5] PSC1[4] PSC1[3] PSC1[2] PSC1[1] PSC1[0]
Default 00000000
Table 9. PWM1 - Pulse Width Modulation 1 register description
Bit 7 6 5 4 3 2 1 0
Symbol PWM1
[7] PWM1
[6] PWM1
[5] PWM1
[4] PWM1
[3] PWM1
[2] PWM1
[1] PWM1
[0]
Default 10000000
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 8 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
6.3.7 LS0 to LS3 - LED selector registers
The LSn LED selector registers determine the source of the LED data.
00 = output is set high-impedance (LED off; default)
01 = output is set LOW (LED on)
10 = output blinks at PWM0 rate
11 = output blinks at PWM1 rate
Table 10. LS0 to LS3 - LED selector registers bit description
Legend: * default value.
Register Bit Value Description
LS0 - LED0 to LED3 selector
LS0 7:6 00* LED3 selected
5:4 00* LED2 selected
3:2 00* LED1 selected
1:0 00* LED0 selected
LS1 - LED4 to LED7 selector
LS1 7:6 00* LED7 selected
5:4 00* LED6 selected
3:2 00* LED5 selected
1:0 00* LED4 selected
LS2 - LED8 to LED11 selector
LS2 7:6 00* LED11 selected
5:4 00* LED10 selected
3:2 00* LED9 selected
1:0 00* LED8 selected
LS3 - LED12 to LED15 selector
LS3 7:6 00* LED15 selected
5:4 00* LED14 selected
3:2 00* LED13 selected
1:0 00* LED12 selected
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 9 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
6.4 Pins used as GPIOs
LEDn pins not used to control LEDs can be used as General Purpose I/Os (GPIOs).
For use as input, set LEDn to high-impedance (00) and then read the pin state via the
INPUT0 or INPUT1 register.
For use as output, connect external pull-up resistor to the pin and size it according to the
DC recommended operating characteristics. LEDn output pin is HIGH when the output is
programmed as high-impedance, and LOW when the output is programmed LOW through
the ‘LED selector’ register. The output can be pulse-width controlled when PWM0 or
PWM1 are used.
6.5 Power-on reset
When power is applied to VDD, an internal Power-On Reset (POR) holds the PCA9532 in
a reset condition until VDD has reached VPOR. At that point, the reset condition is released
and the PCA9532 registers are initialized to their default states, all the outputs in the
OFF state. Thereafter, VDD must be lowered below 0.2 V to reset the device.
6.6 External RESET
A reset can be accomplished by holding the RESET pin LOW for a minimum of tw(rst). The
PCA9532 registers and I2C-bus state machine will be held in their default states until the
RESET input is once again HIGH.
This input requires a pull-up resistor to VDD if no active connection is used.
Figure 7 mbafiD7 6 Figure 8 mums eflqLe‘a
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 10 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
7. Characteristics of the I2C-bus
The I2C-bus is for 2-way, 2-line communication between different ICs or modules. The two
lines are a serial data line (SDA) and a serial clock line (SCL). Both lines must be
connected to a positive supply via a pull-up resistor when connected to the output stages
of a device. Data transfer may be initiated only when the bus is not busy.
7.1 Bit transfer
One data bit is transferred during each clock pulse. The data on the SDA line must remain
stable during the HIGH period of the clock pulse as changes in the data line at this time
will be interpreted as control signals (see Figure 7).
7.1.1 START and STOP conditions
Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW
transition of the data line while the clock is HIGH is defined as the START condition (S).
A LOW-to-HIGH transition of the data line while the clock is HIGH is defined as the STOP
condition (P) (see Figure 8).
7.2 System configuration
A device generating a message is a ‘transmitter’; a device receiving is the ‘receiver’. The
device that controls the message is the ‘master’ and the devices which are controlled by
the master are the ‘slaves’ (see Figure 9).
Fig 7. Bit transfer
PED
GDWDOLQH
VWDEOH
GDWDYDOLG
FKDQJH
RIGDWD
DOORZHG
6'$
6&/
Fig 8. Definition of START and STOP conditions
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 11 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
7.3 Acknowledge
The number of data bytes transferred between the START and the STOP conditions from
transmitter to receiver is not limited. Each byte of eight bits is followed by one
acknowledge bit. The acknowledge bit is a HIGH level put on the bus by the transmitter,
whereas the master generates an extra acknowledge related clock pulse.
A slave receiver which is addressed must generate an acknowledge after the reception of
each byte. Also a master must generate an acknowledge after the reception of each byte
that has been clocked out of the slave transmitter. The device that acknowledges has to
pull down the SDA line during the acknowledge clock pulse, so that the SDA line is stable
LOW during the HIGH period of the acknowledge related clock pulse; set-up and hold
times must be taken into account.
A master receiver must signal an end of data to the transmitter by not generating an
acknowledge on the last byte that has been clocked out of the slave. In this event, the
transmitter must leave the data line HIGH to enable the master to generate a STOP
condition.
Fig 9. System configuration
002aaa966
MASTER
TRANSMITTER/
RECEIVER
SLAVE
RECEIVER
SLAVE
TRANSMITTER/
RECEIVER
MASTER
TRANSMITTER
MASTER
TRANSMITTER/
RECEIVER
SDA
SCL
I2C-BUS
MULTIPLEXER
SLAVE
Fig 10. Acknowledgement on the I2C-bus
002aaa987
S
START
condition
9821
clock pulse for
acknowledgement
not acknowledge
acknowledge
data output
by transmitter
data output
by receiver
SCL from master
123456759 ‘” llllll lllllll f i + T ‘ ,_,% ,—% filllll: IIIIIIIT
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 12 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
7.4 Bus transactions
Fig 11. Write to register
0 AS
slave address
START condition R/W acknowledge
from slave
002aae526
0 0 AI B3 B2 B1 B00
command byte
A
acknowledge
from slave
12345678SCL 9
SDA DATA 1 A
write to register
data out from port
t
v(Q)
acknowledge
from slave
DATA 1 VALID
data to register
1 0 0 A2 A1 A01
Fig 12. Read from register
1 0 0 A2 A1 A0 0 AS1
START condition R/W
acknowledge
from slave
002aae527
A
acknowledge
from slave
SDA
A P
acknowledge
from master
data from register
DATA (first byte)
slave address
STOP
condition
S
(repeated)
START condition
(cont.)
(cont.) 1 A
R/W
acknowledge
from slave
slave address
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
NA
no acknowledge
from master
data from register
DATA (last byte)
command byte
0 0 AI B3 B2 B10B0
Auto-Increment
register address
if AI = 1
1 0 0 A2 A1 A01
Remark: This figure assumes the command byte has previously been programmed with 00h.
Fig 13. Read input port register
1 0 0 A2 A1 A0 1 AS1
START condition R/W acknowledge
from slave
002aae528
A
acknowledge
from master
SDA NA
read from
port
data into
port
P
t
h(D)
data from port
no acknowledge
from master
data from port
DATA 4
slave address
DATA 1
STOP
condition
DATA 2 DATA 3 DATA 4
t
su(D)
DATA 1
I, I, x, x, x, I, Figure 14 Table 13 “Static characteristics" Figure 15 Figure 16
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 13 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
8. Application design-in information
8.1 Minimizing IDD when the I/Os are used to control LEDs
When the I/Os are used to control LEDs, they are normally connected to VDD through a
resistor as shown in Figure 14. Since the LED acts as a diode, when the LED is off the
I/O VI is about 1.2 V less than VDD. The supply current, IDD, increases as VI becomes
lower than VDD and is specified as IDD in Table 13 Static characteristics.
Designs needing to minimize current consumption, such as battery power applications,
should consider maintaining the I/O pins greater than or equal to VDD when the LED is off.
Figure 15 shows a high value resistor in parallel with the LED. Figure 16 shows VDD less
than the LED supply voltage by at least 1.2 V. Both of these methods maintain the I/O VI
at or above VDD and prevents additional supply current consumption when the LED is off.
LED0 to LED12 are used as LED drivers.
LED13 to LED15 are used as regular GPIOs.
Fig 14. Typical application
PCA9532
LED0
LED1
SDA
SCL
RESET
5 V
I2C-BUS/SMBus
MASTER
002aae522
SDA
SCL
VDD
A2
A1
A0
VSS
5 V
10 kΩ
LED2
LED3
LED4
LED5
LED14
LED15
GPIOs
10 kΩ10 kΩ
LED6
LED7
LED8
LED9
LED10
LED11
LED12
LED13
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 14 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
8.2 Programming example
The following example will show how to set LED0 to LED3 on. It will then set LED4 and
LED5 to blink at 1 Hz at a 50 % duty cycle. LED6 and LED7 will be set to be dimmed at
25 % of their maximum brightness (duty cycle = 25 %). LED8 to LED15 will be set to off.
Fig 15. High value resistor in parallel with
the LED Fig 16. Device supplied by a lower voltage
002aac189
LED
VDD
LEDn
100 kΩ
VDD
002aac190
LED
V
DD
LEDn
3.3 V 5 V
Table 11. Programming PCA9532
Program sequence I2C-bus
START S
PCA9532 address with A0 to A2 = LOW C0h
PSC0 subaddress + Auto-Increment 12h
Set prescaler PSC0 to achieve a period of 1 second:
PSC0 = 151
97h
Set PWM0 duty cycle to 50 %:
PWM0 = 128
80h
Set prescaler PCS1 to dim at maximum frequency:
PSC1 = 0
00h
Set PWM1 output duty cycle to 25 %:
PWM1 = 64
40h
Set LED0 to LED3 on 55h
Set LED4 and LED5 to PWM0, and LED6 or LED7 to PWM1 FAh
Set LED8 to LED11 off 00h
Set LED12 to LED15 off 00h
STOP P
Blink period 1 PSC0 1+
152
------------------------
==
PWM0
256
----------------- 0.5=
Blink period max=
PWM1
256
----------------- 0.25=
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 15 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
9. Limiting values
Table 12. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
VDD supply voltage 0.5 +6.0 V
VI/O voltage on an input/output pin VSS 0.5 5.5 V
IO(LEDn) output current on pin LEDn - 25 mA
ISS ground supply current - 200 mA
Ptot total power dissipation - 400 mW
Tstg storage temperature 65 +150 C
Tamb ambient temperature operating 40 +85 C
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 16 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
10. Static characteristics
[1] Typical limits at VDD = 3.3 V, Tamb =25C.
[2] VDD must be lowered to 0.2 V in order to reset part.
[3] Each I/O must be externally limited to a maximum of 25 mA and each octal ([LED0 to LED7] and [LED8 to LED15]) must be limited to a
maximum current of 100 mA for a device total of 200 mA.
Table 13. Static characteristics
VDD = 2.3 V to 5.5 V; VSS =0V; T
amb =
40
C to +85
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ[1] Max Unit
Supplies
VDD supply voltage 2.3 - 5.5 V
IDD supply current operating mode; VDD = 5.5 V; no load;
VI=V
DD or VSS; fSCL =100kHz - 350 550 A
Istb standby current Standby mode; VDD = 5.5 V; no load;
VI=V
DD or VSS; fSCL = 0 kHz -2.15.0A
IDD additional quiescent supply
current Standby mode; VDD =5.5V;
every LED I/O at VI=4.3V;
fSCL = 0 kHz
--2 mA
VPOR power-on reset voltage VDD = 3.3 V; no load; VI=V
DD or VSS [2] -1.72.2V
Input SCL; input/output SDA
VIL LOW-level input voltage 0.5 - +0.3VDD V
VIH HIGH-level input voltage 0.7VDD -5.5V
IOL LOW-level output current VOL =0.4V 3 6.5 - mA
ILleakage current VI=V
DD =V
SS 1- +1 A
Ciinput capacitance VI=V
SS -4.45 pF
I/Os
VIL LOW-level input voltage 0.5 - +0.8 V
VIH HIGH-level input voltage 2.0 - 5.5 V
IOL LOW-level output current VOL =0.4V
VDD =2.3V [3] 9-- mA
VDD =3.0V [3] 12 - - mA
VDD =5.0V [3] 15 - - mA
VOL =0.7V
VDD =2.3V [3] 15 - - mA
VDD =3.0V [3] 20 - - mA
VDD =5.0V [3] 25 - - mA
ILI input leakage current VDD =3.6V; V
I=0V or V
DD 1- +1 A
Cio input/output capacitance - 2.6 5 pF
Select inputs A0, A1, A2; RESET
VIL LOW-level input voltage 0.5 - +0.8 V
VIH HIGH-level input voltage 2.0 - 5.5 V
ILI input leakage current 1- +1 A
Ciinput capacitance VI=V
SS -2.35 pF
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 17 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
(1) maximum
(2) average
(3) minimum
(1) maximum
(2) average
(3) minimum
Fig 17. Typical frequency variation over process at
VDD = 2.3 V to 3.0 V Fig 18. Typical frequency variation over process at
VDD =3.0V to 5.5V
20 %
0 %
20 %
percent
variation
40 %
Tamb (°C)
40 10020
002aac191
020406080
(2)
(1)
(3)
20 %
0 %
20 %
percent
variation
40 %
Tamb (°C)
40 10020
002aac192
020406080
(1)
(2)
(3)
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 18 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
11. Dynamic characteristics
[1] tVD;ACK = time for Acknowledgement signal from SCL LOW to SDA (out) LOW.
[2] tVD;DAT = minimum time for SDA data output to be valid following SCL LOW.
[3] Cb= total capacitance of one bus line in pF.
[4] Resetting the device while actively communicating on the bus may cause glitches or errant STOP conditions.
[5] Upon reset, the full delay will be the sum of trst and the RC time constant of the SDA bus.
Table 14. Dynamic characteristics
Symbol Parameter Conditions Standard-mode
I2C-bus Fast-mode I2C-bus Unit
Min Max Min Max
fSCL SCL clock frequency 0 100 0 400 kHz
tBUF bus free time between a STOP and
START condition 4.7 - 1.3 - s
tHD;STA hold time (repeated) START condition 4.0 - 0.6 - s
tSU;STA set-up time for a repeated START
condition 4.7 - 0.6 - s
tSU;STO set-up time for STOP condition 4.0 - 0.6 - s
tHD;DAT data hold time 0 - 0 - ns
tVD;ACK data valid acknowledge time [1] - 600 - 600 ns
tVD;DAT data valid time LOW-level [2] - 600 - 600 ns
HIGH-level [2] - 1500 - 600 ns
tSU;DAT data set-up time 250 - 100 - ns
tLOW LOW period of the SCL clock 4.7 - 1.3 - s
tHIGH HIGH period of the SCL clock 4.0 - 0.6 - s
trrise time of both SDA and SCL signals - 1000 20 + 0.1Cb[3] 300 ns
tffall time of both SDA and SCL signals - 300 20 + 0.1Cb[3] 300 ns
tSP pulse width of spikes that must be
suppressed by the input filter -50 - 50ns
Port timing
tv(Q) data output valid time - 200 - 200 ns
tsu(D) data input set-up time 100 - 100 - ns
th(D) data input hold time 1 - 1 - s
Reset
tw(rst) reset pulse width 10 - 10 - ns
trec(rst) reset recovery time 0 - 0 - ns
trst reset time [4][5] 400 - 400 - ns
L31 ‘3; fifl‘ I w
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 19 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
Fig 19. Definition of RESET timing
SDA
SCL
002aac193
trst
50 %
30 %
50 % 50 %
50 %
trec(rst) tw(rst)
RESET
LEDn LED off
START
trst
ACK or read cycle
Fig 20. Definition of timing
t
SP
t
BUF
t
HD;STA
PP S
t
LOW
t
r
t
HD;DAT
t
f
t
HIGH
t
SU;DAT
t
SU;STA
Sr
t
HD;STA
t
SU;STO
SDA
SCL
002aaa986
0.7 × V
DD
0.3 × V
DD
0.7 × V
DD
0.3 × V
DD
Rise and fall times refer to VIL and VIH.
Fig 21. I2C-bus timing diagram
002aab175
protocol START
condition
(S)
bit 7
MSB
(A7)
bit 6
(A6) bit 0
(R/W) acknowledge
(A)
STOP
condition
(P)
SCL
SDA
tHD;STA tSU;DAT tHD;DAT
tf
tBUF
tSU;STA tLOW tHIGH
tVD;ACK tSU;STO
1 / fSCL
tr
tVD;DAT
0.3 × VDD
0.7 × VDD
0.3 × VDD
0.7 × VDD
H? \H
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 20 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
12. Test information
RL = load resistor for LEDn. RL for SDA and SCL > 1 k (3 mA or less current).
CL = load capacitance includes jig and probe capacitance.
RT = termination resistance should be equal to the output impedance Zo of the pulse generators.
Fig 22. Test circuitry for switching times
PULSE
GENERATOR
V
O
CL
50 pF
RL
500 Ω
002aab880
RT
V
I
V
DD
DUT
V
DD
open
V
SS
jf'THHHWHWHHH , Til j A > LP ’HHHHWHHHHHH é+ D 4L-
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 21 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
13. Package outline
Fig 23. Package outline SOT137-1 (SO24)
81,7$
PD[ $
 $
 $
 E
S F '
 ( 
H +
( / /
S 4 =
\ZY ș
5()(5(1&(6
287/,1(
9(56,21
(8523($1
352-(&7,21 ,668('$7(
,(& -('(& -(,7$
PP
LQFKHV
 










  




 

R
R
 
',0(16,216LQFKGLPHQVLRQVDUHGHULYHGIURPWKHRULJLQDOPPGLPHQVLRQV
1RWH
3ODVWLFRUPHWDOSURWUXVLRQVRIPPLQFKPD[LPXPSHUVLGHDUHQRWLQFOXGHG


627
;


Z 0
ș
$
$

$

E
S
'
+
(
/
S
4
GHWDLO;
(
=
F
/
Y 0 $

$

$
\

( 06
SLQLQGH[
 










 










 



H

  PP
VFDOH
62SODVWLFVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP 627


HHHHWHHHHH a?“ JL- |:|
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 22 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
Fig 24. Package outline SOT355-1 (TSSOP24)
81,7 $
 $
 $
 E
S F '
 (
 
H +
( / /
S 4 =\ZY ș
5()(5(1&(6
287/,1(
9(56,21
(8523($1
352-(&7,21 ,668('$7(
,(& -('(& -(,7$
PP 










  





R
R
 
',0(16,216PPDUHWKHRULJLQDOGLPHQVLRQV
1RWHV
3ODVWLFRUPHWDOSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG
3ODVWLFLQWHUOHDGSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG


627 02 

 

Z 0
E
S
=
H
 
 
SLQLQGH[
ș
$
$

$

/
S
4
GHWDLO;
/
$

+
(
(
F
Y 0 $
;
$'
\
  PP
VFDOH
76623SODVWLFWKLQVKULQNVPDOORXWOLQHSDFNDJHOHDGVERG\ZLGWKPP 627
$
PD[

9 E@ W flflfl flflfl
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 23 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
Fig 25. Package outline SOT616-1 (HVQFN24)
 
$ (K
E
81,7\H
5()(5(1&(6
287/,1(
9(56,21
(8523($1
352-(&7,21,668('$7(
,(& -('(& -(,7$
PP 

'K


\




H

H



F

  
',0(16,216PPDUHWKHRULJLQDOGLPHQVLRQV
627 02 


/

Y

Z
  PP
VFDOH
627
+94)1SODVWLFWKHUPDOHQKDQFHGYHU\WKLQTXDGIODWSDFNDJHQROHDGV
WHUPLQDOVERG\[[PP
$
PD[
$
$
F
GHWDLO;
\\ &
H
/
(K
'K
H
H
E
 
 




;
'
(
&
% $
H


WHUPLQDO
LQGH[DUHD
WHUPLQDO
LQGH[DUHD
$&
&
%
Y 0
Z 0
H
H
(

1RWH
3ODVWLFRUPHWDOSURWUXVLRQVRIPPPD[LPXPSHUVLGHDUHQRWLQFOXGHG
'

PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 24 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
14. Handling information
All input and output pins are protected against ElectroStatic Discharge (ESD) under
normal handling. When handling ensure that the appropriate precautions are taken as
described in JESD625-A or equivalent standards.
15. Soldering of SMD packages
This text provides a very brief insight into a complex technology. A more in-depth account
of soldering ICs can be found in Application Note AN10365 “Surface mount reflow
soldering description”.
15.1 Introduction to soldering
Soldering is one of the most common methods through which packages are attached to
Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both
the mechanical and the electrical connection. There is no single soldering method that is
ideal for all IC packages. Wave soldering is often preferred when through-hole and
Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not
suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high
densities that come with increased miniaturization.
15.2 Wave and reflow soldering
Wave soldering is a joining technology in which the joints are made by solder coming from
a standing wave of liquid solder. The wave soldering process is suitable for the following:
Through-hole components
Leaded or leadless SMDs, which are glued to the surface of the printed circuit board
Not all SMDs can be wave soldered. Packages with solder balls, and some leadless
packages which have solder lands underneath the body, cannot be wave soldered. Also,
leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered,
due to an increased probability of bridging.
The reflow soldering process involves applying solder paste to a board, followed by
component placement and exposure to a temperature profile. Leaded packages,
packages with solder balls, and leadless packages are all reflow solderable.
Key characteristics in both wave and reflow soldering are:
Board specifications, including the board finish, solder masks and vias
Package footprints, including solder thieves and orientation
The moisture sensitivity level of the packages
Package placement
Inspection and repair
Lead-free soldering versus SnPb soldering
15.3 Wave soldering
Key characteristics in wave soldering are:
Figure 26 Table 15 E Figure 26
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 25 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
Process issues, such as application of adhesive and flux, clinching of leads, board
transport, the solder wave parameters, and the time during which components are
exposed to the wave
Solder bath specifications, including temperature and impurities
15.4 Reflow soldering
Key characteristics in reflow soldering are:
Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to
higher minimum peak temperatures (see Figure 26) than a SnPb process, thus
reducing the process window
Solder paste printing issues including smearing, release, and adjusting the process
window for a mix of large and small components on one board
Reflow temperature profile; this profile includes preheat, reflow (in which the board is
heated to the peak temperature) and cooling down. It is imperative that the peak
temperature is high enough for the solder to make reliable solder joints (a solder paste
characteristic). In addition, the peak temperature must be low enough that the
packages and/or boards are not damaged. The peak temperature of the package
depends on package thickness and volume and is classified in accordance with
Table 15 and 16
Moisture sensitivity precautions, as indicated on the packing, must be respected at all
times.
Studies have shown that small packages reach higher temperatures during reflow
soldering, see Figure 26.
Table 15. SnPb eutectic process (from J-STD-020D)
Package thickness (mm) Package reflow temperature (C)
Volume (mm3)
< 350 350
< 2.5 235 220
2.5 220 220
Table 16. Lead-free process (from J-STD-020D)
Package thickness (mm) Package reflow temperature (C)
Volume (mm3)
< 350 350 to 2000 > 2000
< 1.6 260 260 260
1.6 to 2.5 260 250 245
> 2.5 250 245 245
mammum peak temperature = MSL Irmttr damage \evel mmrmum peak temperature a mtmmum soldenng temperature
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 26 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
For further information on temperature profiles, refer to Application Note AN10365
“Surface mount reflow soldering description”.
16. Abbreviations
MSL: Moisture Sensitivity Level
Fig 26. Temperature profiles for large and small components
001aac844
temperature
time
minimum peak temperature
= minimum soldering temperature
maximum peak temperature
= MSL limit, damage level
peak
temperature
Table 17. Abbreviations
Acronym Description
ACPI Advanced Configuration and Power Interface
CDM Charged Device Model
DSP Digital Signal Processor
DUT Device Under Test
ESD ElectroStatic Discharge
GPIO General Purpose Input/Output
HBM Human Body Model
I2C-bus Inter-Integrated Circuit bus
LED Light Emitting Diode
MCU MicroController Unit
MM Machine Model
MPU MicroProcessor Unit
POR Power-On Reset
RC Resistor-Capacitor network
SMBus System Management Bus
Table 1 Seclibn 5.1 “Pinning" Figure 2 (Figure 3 Table 2 “Pin descriglion" Table note 1 Seclibn 6.2 “Control register" Seclibn 6.6 “External RESET‘ Figure 11 “Wrilelo regisler" Figure 13 “Read inbut Port register" Table 12 “Limiting values" Table 13 “Static characteristics" to Table nole [1] Table 14 “Dynamic characteristics" Figure 19 “Definition of RESET liming"
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 27 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
17. Revision history
Table 18. Revision history
Document ID Release date Data sheet status Change notice Supersedes
PCA9532 v.4.1 20160822 Product data sheet - PCA9532_4
Modifications: Table 1: Corrected topside mark for PCA9532PW.
PCA9532_4 20090317 Product data sheet - PCA9532_3
Modifications: The format of this data sheet has been redesigned to comply with the new identity guidelines of
NXP Semiconductors.
Legal texts have been adapted to the new company name where appropriate.
Section 5.1 “Pinning: replaced (old) Figure 1 with separate drawings for SO24 (Figure 2) and
TSSOP24 (Figure 3)
Table 2 “Pin description: added Table note [1] and its reference at HVQFN24 pin 9, VSS
Section 6.2 “Control register:
2nd paragraph: changed from “The lowest 3 bits are ...” to “The lowest 4 bits are ...”
4th paragraph: changed from “... by reading a register different from ‘0’ ...” to “... by reading a
register different from INPUT0 ...”
Section 6.6 “External RESET, 1st paragraph, 1st sentence: changed symbol from “tW” to “tw(rst)
Figure 11Write to register: symbol changed from “tpv” to “tv(Q)
Figure 13 Read input port register:
Symbol changed from “tph” to “th(D)
Symbol changed from “tps” to “tsu(D)
Table 12 “Limiting values: changed symbol/parameter from “II/O, DC output current on an I/O”
to “IO(LEDn), output current on pin LEDn”
Table 13 “Static characteristics:
Descriptive line below table title: 2nd sentence is moved to Table note [1], with its reference at
column heading “Typ”
IDD parameter changed from “additional standby current” to “additional quiescent supply
current”
Sub-section “I/Os”: symbol changed from “IL” to “ILI
Table 14 “Dynamic characteristics:
Symbol/parameter changed from “tPV, Output data valid” to “tv(Q), data output valid time”
Symbol/parameter changed from “tPS, Input data set-up time” to “tsu(D), data input set-up time”
Symbol/parameter changed from “tPH, Input data hold time” to “th(D), data input hold time”
Symbol changed from “tW” to “tw(rst)
Symbol changed from “tREC” to “trec(rst)
Symbol/parameter changed from “tRESET, Time to reset” to “trst, reset time”
Figure 19 Definition of RESET timing:
Symbol changed from “tREC” to “trec(rst)
Symbol changed from “tRESET” to “trst
Symbol changed from “tW” to “tw(rst)
Symbol changed from “tRESET” to “trst
Updated handling information
Added soldering information
PCA9532_3 20041001 Product data sheet - PCA9532_2
PCA9532_2
(9397 750 11459) 20030502 Product data ECN 853-2398 29860
dated 24 Apr 2003 PCA9532_1
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 28 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
PCA9532_1
(9397 750 10874) 20030226 Product data ECN 853-2398 29297
dated 12 Dec 2002 -
Table 18. Revision history …continued
Document ID Release date Data sheet status Change notice Supersedes
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 29 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
18. Legal information
18.1 Data sheet status
[1] Please consult the most recently issued document before initiating or completing a design.
[2] The term ‘short data sheet’ is explained in section “Definitions”.
[3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nxp.com.
18.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local NXP Semiconductors sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
NXP Semiconductors and its customer, unless NXP Semiconductors and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the NXP Semiconductors product is
deemed to offer functions and qualities beyond those described in the
Product data sheet.
18.3 Disclaimers
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, NXP Semiconductors does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information. NXP Semiconductors takes no
responsibility for the content in this document if provided by an information
source outside of NXP Semiconductors.
In no event shall NXP Semiconductors be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of NXP Semiconductors.
Right to make changes — NXP Semiconductors reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
Suitability for use NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors and its suppliers accept no liability for
inclusion and/or use of NXP Semiconductors products in such equipment or
applications and therefore such inclusion and/or use is at the customer’s own
risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their applications
and products using NXP Semiconductors products, and NXP Semiconductors
accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the NXP
Semiconductors product is suitable and fit for the customer’s applications and
products planned, as well as for the planned application and use of
customer’s third party customer(s). Customers should provide appropriate
design and operating safeguards to minimize the risks associated with their
applications and products.
NXP Semiconductors does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default in the
customer’s applications or products, or the application or use by customer’s
third party customer(s). Customer is responsible for doing all necessary
testing for the customer’s applications and products using NXP
Semiconductors products in order to avoid a default of the applications and
the products or of the application or use by customer’s third party
customer(s). NXP does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — NXP Semiconductors
products are sold subject to the general terms and conditions of commercial
sale, as published at http://www.nxp.com/profile/terms, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. NXP Semiconductors hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of NXP Semiconductors products by customer.
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
Document status[1][2] Product status[3] Definition
Objective [short] data sheet Development This document contains data from the objective specification for product development.
Preliminary [short] data sheet Qualification This document contains data from the preliminary specification.
Product [short] data sheet Production This document contains the product specification.
hug :l/www. nxgcom salesaddresses®nx9£0m
PCA9532 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 4.1 — 22 August 2016 30 of 31
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific NXP Semiconductors product is automotive qualified,
the product is not suitable for automotive use. It is neither qualified nor tested
in accordance with automotive testing or application requirements. NXP
Semiconductors accepts no liability for inclusion and/or use of
non-automotive qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without NXP Semiconductors’ warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
NXP Semiconductors’ specifications such use shall be solely at customer’s
own risk, and (c) customer fully indemnifies NXP Semiconductors for any
liability, damages or failed product claims resulting from customer design and
use of the product for automotive applications beyond NXP Semiconductors’
standard warranty and NXP Semiconductors’ product specifications.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
18.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
I2C-bus — logo is a trademark of NXP Semiconductors N.V.
19. Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
NXP Semiconductors PCA9532
16-bit I2C-bus LED dimmer
© NXP Semiconductors N.V. 2016. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 22 August 2016
Document identifier: PCA9532
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
20. Contents
1 General description . . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
4 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5 Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
5.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
6 Functional description . . . . . . . . . . . . . . . . . . . 5
6.1 Device address. . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2 Control register. . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2.1 Control register definition . . . . . . . . . . . . . . . . . 6
6.3 Register descriptions . . . . . . . . . . . . . . . . . . . . 6
6.3.1 INPUT0 - Input register 0 . . . . . . . . . . . . . . . . . 6
6.3.2 INPUT1 - Input register 1 . . . . . . . . . . . . . . . . . 6
6.3.3 PCS0 - Frequency Prescaler 0. . . . . . . . . . . . . 7
6.3.4 PWM0 - Pulse Width Modulation 0. . . . . . . . . . 7
6.3.5 PCS1 - Frequency Prescaler 1. . . . . . . . . . . . . 7
6.3.6 PWM1 - Pulse Width Modulation 1. . . . . . . . . . 7
6.3.7 LS0 to LS3 - LED selector registers . . . . . . . . . 8
6.4 Pins used as GPIOs . . . . . . . . . . . . . . . . . . . . . 9
6.5 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.6 External RESET . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Characteristics of the I2C-bus . . . . . . . . . . . . 10
7.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.1.1 START and STOP conditions . . . . . . . . . . . . . 10
7.2 System configuration . . . . . . . . . . . . . . . . . . . 10
7.3 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.4 Bus transactions. . . . . . . . . . . . . . . . . . . . . . . 12
8 Application design-in information . . . . . . . . . 13
8.1 Minimizing IDD when the I/Os are used
to control LEDs . . . . . . . . . . . . . . . . . . . . . . . . 13
8.2 Programming example . . . . . . . . . . . . . . . . . . 14
9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 15
10 Static characteristics. . . . . . . . . . . . . . . . . . . . 16
11 Dynamic characteristics . . . . . . . . . . . . . . . . . 18
12 Test information. . . . . . . . . . . . . . . . . . . . . . . . 20
13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 21
14 Handling information. . . . . . . . . . . . . . . . . . . . 24
15 Soldering of SMD packages . . . . . . . . . . . . . . 24
15.1 Introduction to soldering . . . . . . . . . . . . . . . . . 24
15.2 Wave and reflow soldering . . . . . . . . . . . . . . . 24
15.3 Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 24
15.4 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 25
16 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 26
17 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 27
18 Legal information . . . . . . . . . . . . . . . . . . . . . . 29
18.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 29
18.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
18.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 29
18.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 30
19 Contact information . . . . . . . . . . . . . . . . . . . . 30
20 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Products related to this Datasheet

PCA9532 I2C 16-CH LED DEMOBOARD
Available Quantity: 0
Unit Price: 69.65