IRS20957S Datasheet by Infineon Technologies

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International ISBR Rectifier l g T $ $4; 3 ’T’ WL ,fiE g—FWQE ”6 E 3 lfi E TT
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1
IRS20957S
Protected Digital Audio Driver
Features
Floating PWM input enables easy half bridge
implementation
Programmable bidirectional over-current protection with
self-reset function
Programmable preset dead-time for improved THD
performances
High noise immunity
100V ratings deliver up to 500W in output power
3.3 V/ 5 V logic compatible input
Operates up to 800kHz
Typical Applications
Home theatre systems
Mini component stereo systems
Powered speaker systems
General purpose audio power amplifiers
Product Summary
Topology
Half-Bridge
VOFFSET (max)
+/- 100 V
IO+ & IO- (typical)
1.0 A & 1.2 A
Selectable deadtime
15/25/35/80ns
Ton & toff (typical)
95ns & 80ns
OC protection delay
500ns (max)
Shutdown
propagation delay
250ns (max)
Package
IRS20957S
12V
-B
Vcc
Speaker
+B
PWM
VDD
CSD
IN
OCSET
COM
VSS
LO
VCC
VREF
HO
VS
NC
CSH
VB
DT
2
161
4
3
5
6
7
8
15
14
13
12
11
10
9
NC
Note: Please refer to Lead Assignments for correct pin configuration. This diagram shows
electrical connections only.
Sept 19, 2016
Datasheet No PD
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Table of Contents
Page
Description
3
Qualification Information
4
Absolute Maximum Ratings
5
Recommended Operating Conditions
6
Electrical Characteristics
7
Functional Block Diagram
9
Input/Output Pin Equivalent Circuit Diagram
10
Lead Definitions
11
Lead Assignments
11
Waveform definitions
12
Application information and additional information
12
Package Details
13
Tape and Reel Details
14
Part Marking Information
15
Ordering Information
16
\nTernotional IezR Rectifier
IRS20957S
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© 2008 International Rectifier
3
Description
The IRS20957S is a high voltage, high speed MOSFET driver with a floating PWM input designed for Class
D audio amplifier applications.
Bi-directional current sensing detects over current conditions during positive and negative load currents
without any external shunt resistors. A built-in protection control block provides a secure protection
sequence against over-current conditions and a programmable reset timer.
The internal dead-time generation block enables accurate gate switching and optimum dead-time setting
for better audio performance, such as lower THD and lower audio noise floor.
\memotionol ISER Rectifier IVY 2'" f htlg://www.irf.com/
IRS20957S
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4
Qualification Information
Qualification Level
Industrial††
Comments: This family of ICs has passed JEDEC’s
Industrial qualification. IR’s Consumer qualification level is
granted by extension of the higher Industrial level.
Moisture Sensitivity Level
SOIC16N
MSL2†††260°C
(per IPC/JEDEC J-STD-020)
ESD
Machine Model
Class B
(per JEDEC standard EIA/JESD22-A115)
Human Body Model
Class 2
(per EIA/JEDEC standard JESD22-A114)
IC Latch-Up Test
Class I , Level A
(per JESD78)
RoHS Compliant
Yes
Qualification standards can be found at International Rectifier’s web site http://www.irf.com/
††
Higher qualification ratings may be available should the user have such requirements. Please
contact your International Rectifier sales representative for further information.
†††
Higher MSL ratings may be available for the specific package types listed here. Please contact
your International Rectifier sales representative for further information.
\memotionol ISER Rectifier
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© 2008 International Rectifier
5
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All
voltage parameters are absolute voltages referenced to COM; all currents are defined positive into any
lead. The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still
air conditions.
Symbol
Definition
Min.
Max.
Units
VB
High side floating supply voltage
-0.3
215
V
VS
High side floating supply voltage
VB-15
VB+0.3
VHO
High side floating output voltage
Vs-0.3
VB+0.3
VCSH
CSH pin input voltage
Vs-0.3
VB+0.3
VCC
Low side fixed supply voltage
-0.3
20
VLO
Low side output voltage
-0.3
VCC +0.3
VDD
Floating input supply voltage
-0.3
210
VSS
Floating input supply voltage
(See IDDZ)
VDD+0.3
VIN
PWM input voltage
VSS -0.3
VDD+0.3
VCSD
CSD pin input voltage
VSS -0.3
VDD+0.3
VDT
DT pin input voltage
-0.3
VCC +0.3
VOCSET
OCSET pin input voltage
-0.3
VCC +0.3
VREF
VREF pin voltage
-0.3
VCC +0.3
IDDZ
Floating input supply zener clamp current
-
10
mA
ICCZ
Low side supply zener clamp current
-
10
IBSZ
Floating supply zener clamp current
-
10
IOREF
Reference output current
-
5
d VS /dt
Allowable VS voltage slew rate
-
50
V/ns
d VSS /dt
Allowable VSS voltage slew rate††
-
50
d VSS /dt
Allowable VSS voltage slew rate upon power-up†††
-
50
V/ms
Pd
Maximum power dissipation
-
1.0
W
RthJA
Thermal resistance, Junction to ambient
-
115
C/W
TJ
Junction Temperature
-
150
C
TS
Storage Temperature
-55
150
TL
Lead temperature (Soldering, 10 seconds)
-
300
VDD - VSS, VCC -COM and VB - VS contain internal shunt zener diodes. Please note that the
voltage ratings of these can be limited by the clamping current.
††
For the rising and falling edges of step signal of 10V. Vss=15V to 200V.
†††
Vss ramps up from 0V to 200V.
\memotionol ISER Rectifier
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6
Recommended Operating Conditions
For proper operation, the device should be used within the recommended conditions below. The Vs and
COM offset ratings are tested with supplies biased at IDD=5mA, VCC=12V and VB-VS=12V.
Symbol
Definition
Min.
Max.
Units
VB
High side floating supply absolute voltage
Vs+10
Vs+14
V
VS
High side floating supply offset voltage
200
IDDZ
Floating input supply zener clamp current
1
5
mA
VSS
Floating input supply absolute voltage
0
100
V
VHO
High side floating output voltage
Vs
VB
VCC
Low side fixed supply voltage
10
15
VLO
Low side output voltage
0
VCC
VIN
PWM input voltage
VSS
VDD
VCSD
CSD pin input voltage
VSS
VDD
VDT
DT pin input voltage
0
VCC
IOREF
Reference output current to COM
0.3
0.8
mA
VOCSET
OCSET pin input voltage
0.5
5
V
TA
Ambient Temperature
-40
125
C
Logic operational for Vs equal to 5V to +200V. Logic state held for Vs equal to 5V to VBS.
††
Nominal voltage for VREF is 5V. IOREF of 0.3 0.8mA dictates total external resistor value on
VREF to be 6.3k to 16.7k Ω.
\memotionol ISER Rectifier
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Electrical Characteristics
VCC,VBS= 12 V, IDD=5mA, VSS=20V, VS=0V,CL=1nF and TA=25C unless otherwise specified.
Symbol
Description
Min
Typ
Max
Units
Test Conditions
Low Side Supply
UVCC+
VCC supply UVLO positive
threshold
8.4
8.9
9.4
V
UVCC-
VCC supply UVLO negative
threshold
8.2
8.7
9.2
IQCC
Low side quiescent current
-
-
3
mA
VDT = VCC
VCLAMPL
Low side zener diode clamp
voltage
19.6
20.4
21.6
V
ICC=5mA
High Side Floating Supply
UVBS+
High side well UVLO positive
threshold
8.0
8.5
9.0
V
UVBS-
High side well UVLO negative
threshold
7.8
8.3
8.8
IQBS
High side quiescent current
-
-
1
mA
ILKH
High to Low side leakage
current
-
-
50
µA
VB=VS =200V
VCLAMPH
High side zener diode clamp
voltage
14.7
15.3
16.2
V
IBS=5mA
Floating Input Supply
UVDD+
VDD, VSS floating supply
UVLO positive threshold
8.2
8.7
9.2
V
VSS =0V
UVDD-
VDD, VSS floating supply
UVLO negative threshold
7.7
8.2
8.7
VSS =0V
IQDD
Floating Input quiescent
current
-
-
1
mA
VDD=9.5V +Vss
VCLAMPM
Floating Input zener diode
clamp voltage
9.8
10.2
10.8
V
IDD=5mA
ILKM
Floating input side to Low side
leakage current
-
-
50
µA
VDD=VSS =200V
Floating PWM Input
VIH
Logic high input threshold
voltage
2.3
1.9
-
V
VIL
Logic low input threshold
voltage
-
1.9
1.5
IIN+
Logic “1” input bias current
-
-
40
µA
VIN =3.3V
IIN-
Logic “0” input bias current
-
-
1
VIN = VSS
Protection
VREF
Reference output voltage
4.8
5.1
5.4
V
IOREF =0.5mA
VthOCL
Low side OC threshold in Vs
1.1
1.2
1.3
OCSET=1.2V,
Figure 3
VthOCH
High side OC threshold in
VCSH
1.1+ Vs
1.2+ Vs
1.3+ Vs
Vs=200V,
Figure 4
Vth1
CSD pin shutdown release
threshold
0.62xVDD
0.70xVDD
0.78xVDD
VSS =0V
Vth2
CSD pin self reset threshold
0.26xVDD
0.30xVDD
0.34xVDD
VSS =0V
ICSD+
CSD pin discharge current
70
100
130
µA
VSD = VSS +5V
ICSD-
CSD pin charge current
70
100
130
VSD = VSS +5V
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Protection (continued)
Symbol
Description
Min
Typ
Max
Units
Test Conditions
tSD
Shutdown propagation delay
from VCSD > VSS + VthOCH to
Shutdown
-
-
250
ns
Figure 2
tOCH
Propagation delay time from
VCSH > VthOCH to Shutdown
-
-
500
Figure 4
tOCL
Propagation delay time from
Vs> VthOCL to Shutdown
-
-
500
Figure 3
Gate Driver
Io+
Output high short circuit
current (Source)
-
1.0
-
A
Vo=0V,
PW<10µS
Io-
Output low short circuit
current (Sink)
-
1.2
-
Vo=12V,
PW<10µS
VOL
Low level out put voltage
LO COM, HO VS
-
-
0.1
V
Io=0A
VOH
High level out put voltage
VCC LO, VB HO
-
-
1.4
Io=0A
tr
Turn-on rise time
-
15
-
ns
tf
Turn-off fall time
-
10
-
Ton_1
High and low side turn-on
propagation delay, floating
inputs
-
95
-
VDT = VCC,
VS = 100V,
VSS = 100V
Toff_1
High and low side turn-off
propagation delay, floating
inputs
-
80
-
VDT = VCC,
VS = 100V,
VSS = 100V
Ton_2
High and low side turn-on
propagation delay, non-
floating inputs
-
95
-
VDT = VCC,
VS = 100V,
VSS = COM
Toff_2
High and low side turn-off
propagation delay, non-
floating inputs
-
80
-
VDT = VCC,
VS = 100V,
VSS = COM
DT1
Deadtime: LO turn-off to HO
turn-on (DTLO-HO) & HO turn-
off to LO turn-on (DTHO-LO)
8
15
22
VDT>VDT1,
VSS = COM
DT2
Deadtime: LO turn-off to HO
turn-on (DTLO-HO) & HO turn-
off to LO turn-on (DTHO-LO)
15
25
35
VDT1>VDT> VDT2,
VSS = COM
DT3
Deadtime: LO turn-off to HO
turn-on (DTLO-HO) & HO turn-
off to LO turn-on (DTHO-LO)
20
35
50
VDT2>VDT> VDT3,
VSS = COM
DT4
Deadtime: LO turn-off to HO
turn-on (DTLO-HO) & HO turn-
off to LO turn-on (DTHO-
LO)VDT= VDT4
50
80
110
VDT3>VDT,
VSS = COM
VDT1
DT mode select threshold 1
0.51xVcc
0.57xVcc
0.63xVcc
V
VDT2
DT mode select threshold 2
0.32xVcc
0.36xVcc
0.40xVcc
VDT3
DT mode select threshold 3
0.21xVcc
0.23xVcc
0.25xVcc
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Functional Block Diagram
HIGH
SIDE
CS
VB
HO
VS
IN
LOW SIDE CS
CSD
UV
Q
UV
DETECT
DEAD-TIME
VCC
LO
COM
VDD
VSS
CSH
PROTECTION
CONTROL
SD
OCSET
UV
DETECT
UV
DETECT
CHARGE/
DISCHARGE
HV
LEVEL
SHIFT
HV
LEVEL
SHIFT
HV
LEVEL
SHIFT
FLOATING INPUT
FLOATING HIGH SIDE
HV
LEVEL
SHIFT
HV
LEVEL
SHIFT
5V REG
DT
DT
INPUT
LOGIC
10.2V
15.3V
20.4V
VREF
5.1V REFERENCE
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I/O Pin Equivalent Circuit Diagrams
ESD
Diode
ESD
Diode
VDD
CSD
VSS
10V
Clamp
VSS
215 V
ESD
Diode
ESD
Diode
VB
HO
VS
ESD
Diode
ESD
Diode
LO
COM
215 V
15 V
Clamp
20 V
Clamp
VCC
VCC
ESD
Diode
ESD
Diode
VCC
DT, VREF
or
OCSET
COM
ESD
Diode
ESD
Diode
VB
CSH
VS
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Lead Definitions
Pin #
Symbol
Description
1
VDD
Floating input positive supply
2
CSD
Shutdown timing capacitor, referenced to VSS
3
IN
PWM non-inverting input, in phase with HO
4
VSS
Floating input supply return
5
NC
6
VREF
5V reference output for setting OCSET
7
OCSET
Low side over current threshold setting, referenced to COM
8
DT
Input for programmable dead-time, referenced to COM
9
COM
Low side supply return
10
LO
Low side output
11
VCC
Low side logic supply
12
NC
13
VS
High side floating supply return
14
HO
High side output
15
VB
High side floating supply
16
CSH
High side over current sensing input, referenced to VS
Lead Assignments
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IRS20957
VDD
IN
CSD
VSS
OCSET
DT
VREF
COM
LO
VCC
HO
VS
CSH
VB
NC NC
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IRS20957S
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12
Waveform definitions
50% 50%
toff(L)
ton(L)
90%
10%
90%
10%
DTLO-HO
toff(H)
COMP
LO
HO
ton(H)
DTHO-LO
Vth1
tSD
90%
CSD
HO/LO
Figure 1: Switching Time Waveform Definitions
Figure 2: CSD to Shutdown Waveform Definitions
VthOCL
tOCL
90%
VS
LO
VthOCH
tOCH
90%
CSH
HO
VS
Figure 3: VS > VthOCL to Shutdown Waveform
Figure 4: VCSH > VthOCH to Shutdown Waveform
Application information and additional information
Please refer to AN-1144 for IRS20957 functional description.
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IRS20957S
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Package Details: SOIC16N
\memotionol 152R Rectifier omamow n» MM L f \ 3:? 1 <7 l="" t="">
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Package Details: SOIC16N, Tape and Reel
CARRIER TAPE DIMENSION FOR 16SOICN
Code Min Max Min Max
A7.90 8.10 0.311 0.318
B 3.90 4.10 0.153 0.161
C15.70 16.30 0.618 0.641
D7.40 7.60 0.291 0.299
E6.40 6.60 0.252 0.260
F10.20 10.40 0.402 0.409
G1.50 n/a 0.059 n/a
H1.50 1.60 0.059 0.062
Metric
Imperial
REEL DIMENSIONS FOR 16SOICN
Code Min Max Min Max
A329.60 330.25 12.976 13.001
B20.95 21.45 0.824 0.844
C12.80 13.20 0.503 0.519
D1.95 2.45 0.767 0.096
E98.00 102.00 3.858 4.015
Fn/a 22.40 n/a 0.881
G18.50 21.10 0.728 0.830
H16.40 18.40 0.645 0.724
Metric
Imperial
E
F
A
C
D
G
A
B
H
NOTE : CONTROLLING
DIMENSION IN MM
LOADED TAPE FEED DIRECTION
A
H
F
E
G
D
B
C
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Part Marking Information
IRSxxxxx
IR logo
YWW ?
Part number
Date code
Pin 1
Identifier
Lot Code
(Prod mode
4 digit SPN code)
Assembly site code
Per SCOP 200-002
? XXXX
MARKING CODE
Lead Free Released
Non-Lead Free Released
?
P
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16
Ordering Information
Base Part Number
Package Type
Standard Pack
Complete Part Number
Form
Quantity
IRS20957S
SOIC16N
Tube/Bulk
45
IRS20957SPBF
Tape and Reel
2500
IRS20957STRPBF
The information provided in this document is believed to be accurate and reliable. However, International Rectifier assumes no
responsibility for the consequences of the use of this information. International Rectifier assumes no responsibility for any infringement
of patents or of other rights of third parties which may result from the use of this information. No license is granted by implication or
otherwise under any patent or patent rights of International Rectifier. The specifications mentioned in this document are subject to
change without notice. This document supersedes and replaces all information previously supplied.
For technical support, please contact IR’s Technical Assistance Center
http://www.irf.com/technical-info/
WORLD HEADQUARTERS:
233 Kansas St., El Segundo, California 90245
Tel: (310) 252-7105
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17
Change History
March 14, 2008
1) Updated the format
2) Added Product Summary
3) Added Qualification table
March 18, 2008
1) Added package details, part marking, ordering info
April 22, 2008
1) Inserted ton, toff typical numbers
2) Removed unnecessary place holders
3) Inserted I/O dwgs
4) Fixed formatting on tables
5) Changed copyright to 2008 instead of 2007
6) Added waveform definition section based on IRS20954/5 DS
April 23, 2008
1) Changed topology to HBridge
2) Changed ton typical to 95ns (on product summary table and elec. Char. Table)
April 24, 2008
1) Changed Typical Connection Diagram
2) Changed High side zener diode clamp voltage
3) Changed I/O Pin Equivalent Circuit Diagrams
Absolute Maximum Ratings
VB
High side floating supply voltage
-0.3
215
V
VS
High side floating supply voltage (Note1)
VB-15
VB+0.3
V
Recommended Operating Conditions
VB
High side floating supply absolute voltage
Vs+10
Vs+14
V
VCC
Low side fixed supply voltage
10
15
V
April 29, 2008
1) Changed format
2) Changed note1, 2, 3 to , ††, †††
June 12, 08
1) Replaced part marking information with the latest version
June 23, 08
1) Updated std pack quantity for SO16N to 45 pcs
August 4th, 2008:
1) added typical applications on page 1
2) removed PbF from product name on page 1
3) Merge units in table
4) Added “Application information and additional details” on page 12.
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18
September 10th, 2008
1) Added AN-1144 on page 12
March 5, 2009
Added PD number
Sept 19, 2016
Corrected typos:
All voltage parameters are absolute voltages referenced to COM;
ESD
Diode
ESD
Diode
VDD
CSD
VSS
10V
Clamp
VSS
215 V
ESD
Diode
ESD
Diode
VB
HO
VS
ESD
Diode
ESD
Diode
LO
COM
215 V
15 V
Clamp
20 V
Clamp
VCC
VCC

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