LX1672(2005_08) Ver la hoja de datos (PDF) - Microsemi Corporation

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LX1672
(Rev.:2005_08)

Multiple Output LoadSHARE™ PWM

Microsemi Corporation 

LX1672

®

Multiple Output LoadSHARE™ PWM

TM

PRODUCTION DATA SHEET

BLOCK DIAGRAM

VS2

EO2

LPF2

FB2

RF2

LPF1

PHASE1

CS2

VTRIP

CS Comp

-

IRESET

+

ISET

RSET

PWM

RQ

SQ

Error Comp

+

-

-

+ Amplifier/

Compensation

VREF

20k

Ramp

Oscillator

UVLO

S

F FAULT S

R

S

SS1

SS2

Hiccup

ISET

+5V

VC2

HO2

LO2

PG2

+5V

VCCL

UVLO

TEMP

16V 16V

+5V

VCC

5.5V

Vin

CIN

V out 2

L2

ESR

COUT

SS

CSS

DIS 2

Figure 3– Block Diagram of Phase 2 Connected in LoadSHARE Mode

Note: With the MLPQ package there is only one PGX output (PG1 and PG2 are common)

Copyright © 2000

Rev. 1.0, 2005-08-10

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 7

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