BM531Q11 Series

1ch Buck Type (Quasi-Resonant Control) White LED Driver for Large LCD Included 250V MOSFET

Catalog

1ch Buck Type (Quasi-Resonant Control) White LED Driver for Large LCD Included 250V MOSFET

Part	Type	Supplier Device Package	Applications	Internal Switch(s)	Frequency	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply (Min) [Min]	Dimming	Package / Case	Package / Case	Package / Case	Voltage - Supply (Max) [Max]	Topology	Number of Outputs	Mounting Type
Rohm Semiconductor BM531Q11-Z	DC DC Regulator	7-DIP	Backlight		400 kHz	-40 °C	105 ░C	9 V	Analog PWM	7.62 mm	0.3 in 7 Leads	8-DIP	35 V	Step-Down (Buck)	1	Through Hole

Catalog

1ch Buck Type (Quasi-Resonant Control) White LED Driver for Large LCD Included 250V MOSFET

Key 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 pin)

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.