Datasheet > BD92111F

BD92111F

更新时间： 2024-09-27 11:13:27

品牌	Logo	应用领域
罗姆 - ROHM		驱动功率因数校正驱动器
页数	文件大小	规格书
27页	2834K
描述
BD92111F是PFC直接连接的电流共振型LED驱动器。LED电流通过频率控制。应用可直接连接PFC，可使用半桥结构。因此可减少外接部件的数量。BD92111F中内置了应对异常状态的几种保护功能。过电压保护 (OVP : over voltage protection), LED开路检测 (IS Low检测) 等。

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BD92111F 数据手册

Datasheet

PFC Direct current resonance type

White LED Driver for Large LCD

BD92111F

General Description

Key Specifications

BD92111F is a current resonance type LED Driver with

frequency-controlled LED current. It can connect to PFC

directly and can use half-bridge structure reducing the

number of external components.



Operating Power Supply Voltage Range:

8.0V to 18.0V



Minimum Oscillator Frequency:

65.8kHz

(RRT=22kΩ,RADJ=36kΩ,VFB=3.2V)

It incorporates some protection functions against fault

conditions such as Over-Voltage Protection and LED

Open Detection (IS Low Detection).



Operating Current:

Operating Temperature Range:

2.3mA (Typ)

-40°C to +85°C

Package

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

11.20mm x 7.80mm x 2.01mm

Features

SOP18



20V High Rating Process

Pin pitch

1.27mm

1 Channel Push-pull Control

Current and Voltage Feedback by Driving

Frequency



Adjustable Soft Start

Adjustable Timer Latch

Under-Voltage Detection for IC’s Power Line

Output Over-Voltage Protection

Output Error Signal from FAIL Terminal

Shift to Save Mode by STB Terminal

Burst Control by External PWM Signal

Applications



TV, Computer Display, LCD Backlighting.

Figure. 1 SOP18

Typical Application Circuit

< Primary Side >

VCC

GND

PDIM

STB

PDIM

PVIN

ON/OFF

PWMIN

GND

PWM

ERR

FAIL

CSS CSDON

CFBVS

CFBIS

RFBVS

RFBIS

RADJ

RRT

CCP

< Secondary Side >

Figure. 2 Typical Application Circuit(s)

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

.www.rohm.com

TSZ02201-0F5F0C100090-1-2

31.Jan.2016 Rev.001

1/24

TSZ22111 • 14 • 001

12 3 4 5 6 7...27

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