Datasheet > BM531Q11

BM531Q11

更新时间： 2024-11-19 11:13:31

品牌	Logo	应用领域
罗姆 - ROHM		开关驱动驱动器转换器
页数	文件大小	规格书
23页	1027K
描述
BM531Q11是白色LED用高效率驱动器，适用于大屏幕液晶驱动器。BM531Q11内置了可向光源（LED串联连接的阵列）提供适当电压的准谐振方式DCDC转换器。内置250V耐压MOSFET，通过外接开关用电流检测电阻，可实现高自由度的电源设计。

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BM531Q11 数据手册

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

Key Specifications

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.

 Operating power supply voltage range:

VCC: 9.0V to 35.0V

DRAIN:

to 250V

700μA(typ.)

400kHz(typ.)

 Operating current:

 Maximum frequency:

 Operating temperature range:

- 40°C to +105°C

Features

1.2 Package

W(Typ) x D(Typ) x H(Max)

9.20mm×6.35mm×4.30mm



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)

DIP7AK

Applications

 TV, Computer Display

 Other LCD backlighting

Figure 1. DIP7AK

Typical Application Circuit

Figure 2. Typical Application Circuit

〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays

www.rohm.com

TSZ02201-0F4F0C100170-1-2

22.Jul.2016 Rev.001

1/20

TSZ22111・14・001

12 3 4 5 6 7...23

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