BM531Q11

Datasheet LED Drivers for LCD Backlights 1ch Buck Type (Quasi-Resonant Control) White LED Driver for Large LCD Included 250V MOSFET BM531Q11 1.1 General Description BM531Q11 is a high efficiency driver for white LEDs and designed for large LCDs. BM531Q11 is built-in a quasi-resonant control method DCDC converter that employ an array of LEDs as the light source. BM531Q11 is built-in 250V MOSFET and owing to the external current setting resistance, a power supply design with a high degree of freedom can be achieved. Key Specifications  Operating power supply voltage range: VCC: 9.0V to 35.0V DRAIN: to 250V  Operating current: 700μA(typ.)  Maximum frequency: 400kHz(typ.)  Operating temperature range: - 40°C to +105°C Features  Quasi-resonant switching mode  Built-in 250V MOSFET  Maximum frequency 400kHz  VCC pin: under voltage protection  SOURCE pin: Leading-Edge-Blanking function  PWM and ADIM dimming operating  FAIL signal output (ADIM...