Datasheet
LED Drivers for LCD Backlights
White LED Driver for large LCD Panels (DCDC Converter Type)
BD9421F
General Description
BD9421F is high efficiency driver for white LED.
This is designed for large sized LCD.
BD9421F is built-in DCDC converters that supply appropriate voltage for light source.
BD9421F is also built-in protection function for abnormal state such as OVP: over voltage protection, OCP: over current limit protection of DCDC, SCP: short circuit protection, open detection of LED string.
Thus this is used for conditions of large output voltage and load conditions.
Features
6ch LED constant current driver(External
PNP Tr Type)
Maximum LED setting current 500mA(VREF Pin ...