LD7750EGR Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

LD7750EGR

High Voltage Green-Mode PWM Controller with Over Temperature Protection

Unspecified 

Pin Configuration

SOP-7 (TOP VIEW)

SOP-8 /DIP-8 (TOP VIEW)

LD7750E

8

65

TOP MARK

YYWWPP

1 234

8 765

TOP MARK

YYWWPP

1 234

YY:

WW:

PP:

Year code

Week code

Production code

Ordering Information

Part number

Package

LD7750EGS

SOP-8

LD7750EGR

SOP-7

LD7750EGN

DIP-8

The LD7750E is green packaged

Top Mark

LD7750EGS

LD7750EGR

LD7750EGN

Shipping

2500 /tape & reel

2500 /tape & reel

3600 /tube /Carton

Protection Mode

Part number

LD7750E

Switching Freq.

65kHz

VCC OVP

Auto recovery

OLP

Auto recovery

OTP Pin

Auto recovery

Pin Descriptions

SOP-8

SOP-7

DIP-8

1

1

2

2

3

3

4

4

5

5

6

6

7

8

8

NAME

OTP

COMP

CS

GND

OUT

VCC

NC

HV

FUNCTION

Pulling this pin below 0.95V will shut down the controller. Connecting a

NTC between this pin and ground will achieve OTP protection function. Let

this pin float or connect a 100kΩ resistor to disable the latch protection.

Voltage feedback pin. By connecting a photo-coupler to close the control

loop can achieve the regulation.

Current sense pin, for sensing the MOSFET current.

Ground.

Gate drive output to drive the external MOSFET.

Supply voltage pin.

Unconnected Pin.

Connect this pin to a 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 turned off to reduce the power loss on the startup circuit.

Leadtrend Technology Corporation

LD7750E-DS-00 February 2012

2

www.leadtrend.com.tw

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