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TECHNICAL NOTE For LCD panel backlight White LED driver IC under development BD8108FM rev. 0.14 ● Outline BD8108FM is a white LED driver of high-withstand-voltage (36V). Step-up DC/DC converter and constant current output 4ch are built-in in 1chip. The brightness can be controlled by either PWM or VDAC. ● Features 1) Input voltage range 4.5 30V 2) .
1) Input voltage range 4.5 30V
2) Built-in Step-up DC/DC controller
3) Built-in current driver 4ch (150mA max.) for LED drive
4) Compatible with PWM light-modulating 0.38 99.5%
5) Built-in protective functions (UVLO, OVP, TSD, OCP)
6) Built-in abnormal-status-detecting function (open/short)
7) HSOP-M28 package
● Application
Car navigation backlight and small & medium-sized LCD panel etc.
● Absolute maximum ratings (Ta=25 )
Item
Symbol
Rating
Unit
Power supply voltage (Pin : 1)
VCC
36
V
Load switch output voltage (Pin : 2)
VLOADSW
36
V
LED output voltage(Pin : 12,14,15,17.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | BD810 |
ON Semiconductor |
Plastic High Power Silicon Transistors |
|
| 2 | BD810 |
INCHANGE |
PNP Transistor |
|
| 3 | BD810 |
Savantic |
Silicon PNP Power Transistors |
|
| 4 | BD8100CS |
Pan Jit International |
DPAK SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS |
|
| 5 | BD8100CT |
Pan Jit International |
THROUGH HOLE MOUNT SCHOTTKY BARRIER RECTIFIERS |
|
| 6 | BD8100S |
Pan Jit International |
DPAK SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS |
|
| 7 | BD8100T |
Pan Jit International |
THROUGH HOLE MOUNT SCHOTTKY BARRIER RECTIFIERS |
|
| 8 | BD8100YS |
Pan Jit International |
DPAK SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS |
|
| 9 | BD8100YT |
Pan Jit International |
THROUGH HOLE MOUNT SCHOTTKY BARRIER RECTIFIERS |
|
| 10 | BD81010MUV |
ROHM |
Gamma voltage generater |
|
| 11 | BD81026MUV |
ROHM |
Gamma voltage generater |
|
| 12 | BD8105FV |
Rohm |
LED driver |
|