APW7108NI-TRG Просмотр технического описания (PDF) - Anpec Electronics

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Компоненты Описание

производитель

APW7108NI-TRG

Dual Mobile-Friendly PWM Controller

Anpec Electronics 

APW7108

Block Diagram

2. QFN4x4-24

BOOT1

UGATE1

PHASE1

LGATE1

ADAPTIVE DEAD-TIME

DIODE EMULATION

PWM/PFM TRANSITION

VCC

MODE CHANGE COMP 1

115% VREF

OV1

PG1 EN1 VOUT1 VCC GND VOUT2 EN2 PG2

VCC

POR

ENABLE

BIAS SUPPLIES

REFERENCE

FAULT LATCH

ADAPTIVE DEAD-TIME

DIODE EMULATION

PWM/PFM TRANSITION

VCC

BOOT2

UGATE2

PHASE2

LGATE2

MODE CHANGE COMP 2

PGND

OV2

115% VREF

89% VREF

VSEN1

70% VREF

0.9V

VREF

UV1

UGATE1

OV1 OV2

TON1

Generator

TON2

Generator

UV2

UGATE2

Error

Comparator1

Error

Comparator2

89% VREF

70% VREF

0.9V

VREF

VSEN2

SOFT1

ISEN1

4.5µA

-2.2µA

Soft-Start

Soft-Stop

LGATE1

140Ω

OCSET

0.9V VOCSET

IOCSET1

R

ISEN1

R

11.4

Current

Limit 1

Current

Limit 2

VIN

Soft-Start

Soft-Stop

LGATE2

4.5µA

-2.2µA

140Ω

SOFT2

ISEN2

ISEN2

R

11.4

IOCSET2

R

Copyright © ANPEC Electronics Corp.

15

Rev. A.4 - Jan., 2009

www.anpec.com.tw

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