Part Number: BD9285F
Function: Boost 1-Channel White LED Driver
Package: SOP 18 Pin Type
Manufacturer: Rohm
Images:
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Description:
BD9285F is a high efficiency driver for white LEDs and designed for large LCDs. This IC is built-in a boost DCDC converters that employ an array of LEDs as the light source. BD9285F has some protect function against fault conditions, such as the over-voltage protection (OVP), the over current limit protection of DCDC (OCP), LED over current protection (LEDOCP), the open detection of LED string.
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Features:
1. Current mode DCDC converter
2. Vout discharge circuit as shutdown
3. LED protection circuit (OPEN protection, LED OCP protection)
4. LED protect detection as small PWM dimming signal
5. Over-voltage protection (OVP) and low-voltage protection (SCP: short circuit protection) for the output voltage Vout
6. Adjustable soft start time constant
7. The wide range of analog dimming 0.2V-3.5V
8. The built-in transformation circuit from pulse to DC
9. 2 PWM dimming signal
Applications:
TV, PC display and other LCD backlight system.
Key Specifications:
1. Input voltage range: 9.0V to 18.0V
2. DCDC oscillation frequency : 150kHz (RT=100kΩ)
3. Active current consumption : 1.2mA(Typ.)
4. Operating temperature range : -40℃ to +85℃ […]