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ERG

SFDCB3972F Datasheet Preview

SFDCB3972F Datasheet

Smart Force LED Driver

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Specifications and
Applications Information
06/29/09
Preliminary
The ERG Smart Force Series of LED Drivers are specifically
designed for applications which require high efficiency, wide
dimming and LCD brightness stability over a wide input voltage
range. The SFDCB3972F is designed to provide backlight
power for the Optrex T-55533D104J-LW-A-AAN display.
Designed, manufactured and supported within the USA, the
SFDC features:
9 Wide input voltage range
9 Constant LED current
9 High efficiency
9 External or Internal dimming
9 High dimming ratio
9 Seperate enable and dimming function
9 Soft start
9 One year warranty
SFDCB3972F
Smart Force LED
Driver
Package Configuration
1.10
[27,9]
1
.830
[21,08]
Output
5.61
[142,5]
5.310
[134,87]
.125
[3,18]
Dia. (4x)
Input Connector
Molex
53261-0871
J1-1 Vin(+)
J1-2 Vin(+)
J1-3 GND
J1-4 GND
J1-5 Enable
J1-6 Vin(+)
J1-7 Control
J1-8 GND
Connectors
Output Connector *
Molex
53261-0471
J2-1 Cathode 1
J2-2 Anode 1
J2-3 Cathode 2
J2-4 Anode 2
* Requires harness
ERG part number H12104XXX recommended
2.105
[53,47]
1
.14 Input .14
[3,6] [3,6]
Height: < 12mm
Mass: 40 grams
page 1 of 5.




ERG

SFDCB3972F Datasheet Preview

SFDCB3972F Datasheet

Smart Force LED Driver

No Preview Available !

SFDCB3972F
Absolute Maximum Ratings
Rating
Symbol
Value
Units
Input Voltage Range
Storage Temperature
Control Voltage
Enable Input Voltage
Operating Characteristics
Vin
Tstg
VControl
VEnable
-0.3 to +20.0
-40 to +85
0 to 5.0
0 to Vin
Unless otherwise noted Vin = 12.00 Volts dc and Ta = 25oC.
Characteristic
Symbol
Min
Vdc
oC
Vdc
Vdc
Typ
Max
Units
Input Voltage
Component Surface
Temperature (Note 1)
Input Current
Operating Frequency
LED String Voltage
Efficiency (Note 2)
Output Current (per string)
Enable Pin (Note 3)
Turn-on Threshold
Turn-off Threshold
Enable Input Impedance
Control Pin
V in
Ts
I in
Fo
VLED
h
I out
Vthon
Vthoff
REnable
+10.0
-20
0.71
51
25.5
-
114
-
1.25
-
+12.0
-
0.84
60
-
76
120
-
-
5.0
+20.0
+80
0.97
69
38.5
-
126
1.55
-
-
Vdc
oC
Adc
kHz
Vdc
%
mArms
Vdc
Vdc
kOhms
Full-on Threshold
Vfon
-
0.9
-
Vdc
Full-off Threshold
Vfoff
-
4.2
-
Vdc
Specifications subject to change without notice.
Note 1
Note 2
Note 3
Surface temperature must not exceed 80°C; thermal management actions may be required.
Efficiency calculated using 32V LED string.
The input voltage to the driver must be within its operating characteristic before the driver is enabled,
otherwise the driver may not start or may shut down unexpectedly.
page 2 of 5.


Part Number SFDCB3972F
Description Smart Force LED Driver
Maker ERG
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