U3848B 查看數據表（PDF） - Unisonic Technologies

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U3848B

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

Unisonic Technologies 

U3848/A/B/C

BLOCK DIAGRAM

VCC

7

SS 1

OVP

OLP

OTP

VREF

8

UVLO

Reference voltage

Soft Start

Power-Saving

Unit

LINEAR INTEGRATED CIRCUIT

RT

4

Oscillator

Latch

SQ

RQ

Driver

6 OUT

FB 2

PWM

COMP

5

GND

Explain:OLP(Over Load Protection)

OVP(Over Voltage Protection)

OTP(Over Temperature Protection)

UVLO(Under Voltage Latch-Out

LEB(Led Edge Blanking)

SS(Soft Start)

Current

Limiting

LEB 3 CS

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

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QW-R103-033,B

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