VLD25-SMT Series Datasheet by CUI Inc.

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Product Page 30 Model PCB Famgnm ©CUI |NC® film /f7x\
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date 11/01/2012
page 1 of 6
SERIES: VLD25-SMT DESCRIPTION: LED DRIVER
date 11/01/2012
page 1 of 6
FEATURES
power LED driver
wide input and output voltage range
SMT package
constant current output
PWM dimming and analogue dimming
short circuit protection
analog dimming
high efficiency up to 96%
RoHS
MODEL input
voltage
output
voltage
output
current
ripple and
noise
dimming
control
effi ciency
range
(Vdc)
range
(Vdc)
range
(mA)
max
(mVp-p)
typ
(%)
VLD25-300-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 300 120 PWM+analog 96
VLD25-350-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 350 120 PWM+analog 96
VLD25-500-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 500 120 PWM+analog 96
VLD25-600-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 600 120 PWM+analog 96
VLD25-700-SMT 5.5 ~ 48 3.3 ~ 36 0 ~ 700 120 PWM+analog 96
PART NUMBER KEY
VLD25 - XXX -SMT - X
Output Voltage
Base Number Packaging Style Package Options
"blank" = standard
TR = Tape & Reel
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date 11/01/2012 page 2 of 6CUI Inc SERIES: VLD25-SMT DESCRIPTION: LED DRIVER
INPUT
parameter conditions/description min typ max units
operating input voltage absolute max before device failure
operating input range
5
5.5 24
55
48
Vdc
Vdc
quiescent input
current in off mode Vin = 24 V, Vr < 0.6 V 400 μA
fi lter capacitor 1 μF
remote on/off dc-dc ON (Vr on pin 7)
dc-dc OFF
open or 2.8 V < Vr < 6V
Vr < 0.6 V
remote pin current Vr = 5V 1mA
PWM frequency 0.2 kHz
input voltage - analog dimming Vin = 5.5 ~ 4.8 V 0 15 V
control voltage -
analog dimming
full on
full off
0.15
4.3
0.20
4.5
0.25
4.7
V
V
driving current -
analog dimming Vr = 5 V 0.6 A
OUTPUT
parameter conditions/description min typ max units
voltage range Vin = 48 V , Vo = 3.3 V ~ 36 V 3.3 36 Vdc
voltage drop Vin = 5.5 ~ 48 V, 1 ~ 10 LED 2 4 Vdc
current accuracy ±2 ±3 %
output current range -
analog dimming Vin = 5.5 ~ 48 V, 1 ~ 10 LED 0 100 %
current stability Vin = 48 V, Vo = 3.3 V ~ 36 V ±1 %
temperature coeffi cient -40 ~ 71°C ambient ±0.015 %/°C
capacitive load 1,000 μF
PROTECTIONS
parameter conditions/description min typ max units
short circuit protection continuous automatic recovery
SAFETY AND COMPLIANCE
parameter conditions/description
EMI/EMC EN 55015 power port, EN 55015, IEC/EN 61000-4-(2, 3, 4, 5, 6)
RoHS compliant yes
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature 300/350 mA
500/600/700 mA
-40
-40
85
71
°C
°C
storage temperature -55 125 °C
maximum case temperature 100 °C
MECHANICAL
parameter conditions/description min typ max units
dimensions 0.94 x 0.71 x 0.31 inch (23.86 x 18.1 x 8.0 mm)
case material epoxy resin (UL94-V0)
weight 6g
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[ 1fi+[ 1 M [ Hg
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date 11/01/2012 page 3 of 6CUI Inc SERIES: VLD25-SMT DESCRIPTION: LED DRIVER
3.04 0.120 2.54 0.100
15.24 0.600
5° max
(6 PLCS)
0.040
1.02
18.10 0.713
0.50 0.020
(6 PLCS)
16 10 9
871
7.50 0.295
0.93923.86
8.00 0.315
A
13.70 0.539
DETAIL A
SCALE 8 : 1
0.055
0.20
1.40
0.25 0.010
MECHANICAL DRAWING
PIN CONNECTIONS
Pin Function
1 GND
7 ON/OFF/PWM
8 -Vout
9 +Vout
10 analog dimming
16 Vin
RECOMMENDED FOOTPRINT (TOP VIEW)
unit: mm(inch)
Pin tolerances: ±0.10mm(±0.039inch)
General tolerances: ±0.25mm(±0.010inch)
7
10 9
1
16
8
17.20 [0.677]
2.10 [0.100]
2.54 [0.100]
1.00 [0.039]
grid: 2.54 x 2.54 mm
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date 11/01/2012 page 4 of 6CUI Inc SERIES: VLD25-SMT DESCRIPTION: LED DRIVER
1. Digital Dimming Control
2. Analog Dimming Control and Application Example
APPLICATION NOTES
50% Duty Cycle 80% Duty Cycle
Output current Output current(LED appears dimmer)
Output current(LED appears brighter)
20% Duty Cycle


Ouput Current
Voltage Control (0-15 V max.)
9 9 9 9 9 9 9
Analog Input Voltage
1st LED
Last LED
VLD25-SMT
+Vin
GND
5K1
5K6
On/Off
(Optional)
0-10V
16
1
9
8
710
For the rated frequency PWM dimming, the output current of driver matters to the pulse width of the PWM signal, and the numerate please refer to the
following formula:
Io,set refers to the expected output current value.
Io,norm refers to the rated output current
D refers to the pulse width of the PWM signal
T refers to the cycle of the PWM signal
Note: The formula only supplies as a reference, and the output current may be a little deviation with different load. The Ton(min) of PWM signal must be
greater than 0.7ms, or the driver can’t be operated normally. It is natural for the driver to generate an audibly noise in dimming process, because the
frequency of the control circuit is within human audibly range (20Hz~20kHz). In order to avoid the human eye can observe the LED fl ashes, the PWM
dimming frequency is recommended to set above 100Hz.
Io,set = (DT-0.6) Io,nom
T
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1 PCB Fool nn 3D Model a Product Fa \\ 16 6. WEEEEE
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date 11/01/2012 page 5 of 6CUI Inc SERIES: VLD25-SMT DESCRIPTION: LED DRIVER
3. EMC Recommended Circuit
4. Recommended Refl ow Soldering Profi le
1st LED
Last LED
VLD25-SMT
+Vin
GND
16
17
9
8
470uF
1.0uF
(PWM Dim/ON/OFF)
10
(Analog Dim)
+Vout
-
Vout
+
1.25mH
2.2uF 1.0uF
SMCG51
Vin
GND
+Vout
-Vout
Load
Tvs C0 C1 C2
C3
R1
LCM
VIN
DIM
GND
VO+
VO-
VLD25-SMT
2
DIM
1
EMI/RFI conducted EN55022 recommended circuit
EMI/EMC recommended circuit
Notes: 1. DIM pin is the module's PWM dimming pin
2. While adding circuit, it may extend the PWM dimming output reaction time
EMI/EMC STANDARD
ITEM STANDARD LEVEL PREDICATE REMARK
EMI conducted EN 55015 power port qualifi cation add external circuit 1
ESD IEC 61000-4-2:2001 level 2 B +4kV add external circuit 2
Surge IEC 61000-4-5:2004 level 2 B +1kV add external circuit 1
EFT IEC 61000-4-4:2004 level 2 B +1kV add external circuit 1
RECOMMENDED PARAMETERS
COMPONENTS SPECIFICATIONS
Tvs SMCJ48A, 1500 W (Bringtking)
LCM 6.8 μh CD43 (CEAIYA)
C0 470 μF / 50 V (CapXon)
C1 4.7 μF / 50 V 1210 (TORCH)
C2 2.2 μF / 50 V 1210 (TORCH)
C3 470 PF / 100 V 0805 (TORCH)
R1 680 Ω 0805 (can be replaced by
inductance or magnetic bead)
0
50
100
150
200
250
Time (sec.)
T
e
m
p
e
r
a
t
u
r
e
(
C
)
60 Max
(>220 C)
Sec
220 C
10 MaxSec
Peak.Temp 240 C
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Product Page 30 Model PCB Foolgnnl A \vcunNcE
date 11/01/2012 page 6 of 6CUI Inc SERIES: VLD25-SMT DESCRIPTION: LED DRIVER
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
rev. description date
1.0 initial release 02/20/2012
1.01 V-Infi nity branding removed 09/07/2012
1.02 added TR package option 11/01/2012
The revision history provided is for informational purposes only and is believed to be accurate.
REVISION HISTORY
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