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PDF SFDMB3902F Data sheet ( Hoja de datos )
| Número de pieza | SFDMB3902F | |
| Descripción | Smart Force LED Driver | |
| Fabricantes | ERG | |
| Logotipo |  |
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SFDMB3902F
Specifications and
Applications Information
12/30/08
Preliminary
The ERG Smart Force Series of LED Drivers are specifically
designed for applications which require high efficiency, small
footprint and LCD brightness stability over a wide input voltage
range. The SFDMB3902F is designed to provide backlighting
for the Sharp LQ070Y3LG4A.
Designed, manufactured and supported within the USA, the
SFDM features:
9 Less than 5 mm in height
9 Wide input voltage range
9 Constant LED current
9 With external PWM dimming signal, up to 1000:1
dimming ratio
9 Open and short circuit protection
9 High efficiency
9 Separate enable and dimming function
9 Soft start
9 One year warranty
Input Connector
Molex
53261-0871
J1-1 Vin(+)
J1-2 Vin(+)
J1-3 GND
J1-4 GND
J1-5 Enable
J1-6 PWM
J1-7 N/C
J1-8 Fault Indicator
(output)
Connectors
Output Connector *
Molex
53261-1271
J2-1 Cathode 1 J2-7 (do not use)
J2-2 Anode 1 J2-8 (do not use)
J2-3 (do not use) J2-9 Cathode 3
J2-4 (do not use) J2-10 Anode 3
J2-5 Cathode 2 J2-11 (do not use)
J2-6 Anode 2 J2-12 (do not use)
* Requires harness
ERG part number H11206XXX recommended
Smart Force LED
Driver
Package Configuration
.685
[17,40]
1
Output
.125
[3,18]
Dia. (2x)
2.19
[55,6]
1.206
[30,63]
.135
[3,43]
1
.96
[24,4]
.350
[8,89]
Input
Mass: 7 grams typ.
page 1 of 5.
1 page  
SFDMB3902F
EXTERNAL PWM DIMMING
Graph 1
J1 J2
+12V
1,2
Vin
+ (1)
3,4
GND
Anode 1
Cathode 1
ON
OFF
Duty Cycle
0%-100%
5V
0V
5
Enable
6
PWM
Anode 2
Cathode 2
(output)
8
Fault
Anode 3
Cathode 3
Figure 1
(1) Low ESR type input by-pass capacitor (10 uF - 220 uF) may be required to reduce reflected ripple
and to improve power supply response.
Research Gr
U® L
O
9I0S0T1E RED
FI
A33
Endicott Research Group, Inc. (ERG) reserves the right to make changes in circuit design and/or
specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets
are current before placing orders. Information furnished by ERG is believed to be accurate and
reliable. However, no responsibility is assumed by ERG for its use.
page 5 of 5.
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet SFDMB3902F.PDF ] | |
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