HV9605 View Datasheet(PDF) - Supertex Inc

Part Name

Description

MFG CO.

HV9605

High Voltage Current Mode PWM Controller for ISDN Equipment

Supertex Inc 

Functional Block Diagram

+VIN

STOP

H=SWITCH CLOSED

L= SWITCH OPEN Enable

Start-Up

Regulator

START

+

C

–

VSTART

+ UVLO

C

VREF –

VDD

Bootstrap Good

PWM Good

STATUS

Clock

Oscillator

CLK Q

DQ

CLR

MOSFET Driver

VDD

SQ

+

A

-

–

C

R

+

OUT

CS

PGND

VDD

Bandgap

Reference

Generator

RT

REF

NI

FB

COMP

SGND

Typical Application Circuit

HV9605

+

+

48V INPUT

-

HV9605

+VIN

STOP

VDD

STATUS

START

OUT

CS

PGND

SGND

RT REF NI FB COMP

+

+

TN2124K1

or

TN2524N8

+

+

40V

ISOLATED

OUTPUT

-

RESET

+5.0V

REFERENCED

TO INPUT (-)

TERMINAL

1235 Bordeaux Drive, Sunnyvale, CA 94089

TEL: (408) 744-0100 • FAX: (408) 745-4895

5 www.supertex.com

11/30/98

11/30/98

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