LD7575 Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

LD7575

Green-Mode PWM Controller

Unspecified 

Pin Configuration

SOP-8 & DIP-8 (TOP VIEW)

8 765

TOP MARK

YYWWPP

1 234

YY:

WW:

PP:

Year code

Week code

Production code

LD7575

Ordering Information

Part number

LD7575 PS

Package

SOP-8 PB Free

LD7575 GS

SOP-8 Green Package

LD7575 PN

DIP-8 PB Free

The LD7575 is ROHS compliant/ Green Package.

Top Mark

LD7575PS

LD7575GS

LD7575PN

Shipping

2500 /tape & reel

2500 /tape & reel

3600 /tube /Carton

Pin Descriptions

PIN

NAME

1

RT

2

COMP

3

CS

4

GND

5

OUT

6

VCC

7

NC

8

HV

FUNCTION

This pin will program the switching frequency, to connect a resistor with ground to

set the switching frequency.

Voltage feedback pin (same as the COMP pin in UC384X), By connecting a

photo-coupler to close the control loop and achieve the regulation.

Current sense pin, connect to sense the MOSFET current

Ground

Gate drive output to drive the external MOSFET

Supply voltage pin

Unconnected Pin

Connect this pin to positive terminal of bulk capacitor to provide the startup current

for the controller. When Vcc voltage trips the UVLO(on), this HV loop will be off to

save the power loss on the startup circuit.

Leadtrend Technology Corporation

LD7575-DS-04b November 2007

2

www.leadtrend.com.tw

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