LD7536

2

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD7536-DS-02a December 2011

Pin Configuration

DIP-8 (TOP VIEW)

SOT-26 (TOP VIEW)

YY, Y

: Year code (D: 2004, E: 2005…..)

WW, W : Week code

PP

: Production code

P36

: LD7536

12

3

4

5

6

GND COMP OTP

OUT

VCC

CS

1

8

2

3

4

7

6

5

TOP MARK

YYWWPP

36

pp

Ordering Information

Part number

Package

Top Mark

Shipping

LD7536 GL

SOT-26

Green Package

YWP/36

3000 /tape & reel

LD7536 GN

DIP-8

Green Package

LD7536 GN

3600 /tube /Carton

Protection Mode

Switching Freq.

VCC OVP

OLP

OTP Pin

65kHz

Latch

Auto recovery/ 65ms

Latch

Pin Descriptions

PIN

SOT-26

PIN

DIP-8

NAME

FUNCTION

1

8

GND

Ground

2

7

COMP

Voltage feedback pin (same as the COMP pin in UC384X). Connect a

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

3

5

OTP

Pull this pin below 0.95V to shutdown the controller into latch mode until the AC

resume power-on. Connecting this pin to ground with NTC will achieve OTP

protection. Keep this pin float to disable the latch protection.

4

4

CS

Current sense pin, connect it to sense the MOSFET current

5

2

VCC

Supply voltage pin

6

1

OUT

Gate drive output to drive the external MOSFET