Datasheet > BD83A44EFV-M

BD83A44EFV-M

更新时间： 2024-04-09 18:58:41

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
50页	2338K
描述
This IC is a white LED driver for LCD backlight. It has MOS for boost and 4ch current drivers for

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BD83A44EFV-M 数据手册

BD83A44EFV-M BD83A44MUF-M

Block Diagram

VCC

CSH

LDSW

Driver

VREF

PROTECT

REG

Low side FET /

Pre Driver

PROTECT

Additional

Pulse

PLSET

DC/DC

Control

LOGIC

REG

OSC

SLOPE

－

SSCG

PWM

COMP

PGND

AMP

SYNC

COMP

Error

AMP

－

LED1

LED2

LED3

LED4

Soft

Start

LDSW

Driver

Minimum

Channel

Selector

PROTECT

UVLO

DC/DC

Control

LOGIC

ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀFAIL

TSD

SCP

OCPH

ISET SCP

FAIL

OCPL

OVP

OPEN Det

SHORT Det

OVP

Current

Driver

Internal

CLK

REF

Voltage

Dimming

Control

PWM

REG

ADIM

ISET

CH1 CH2 CH3 CH4

Current Driver

GND

LGND

Figure 2. Internal Block Diagram

www.rohm.com

TSZ22111 • 15 • 001

TSZ02201-0T2T0B200460-1-2

08.May.2023 Rev.001

5/47

1 2 3 456 7 8...50

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