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SANKEN ELECTRIC CO., LTD.

STR-A6000S-DS

PWM Off-Line Switching Regulator ICs

STR-W6000S

Series

February 27, 2013

Functional Block Diagram

D/ST

VCC

4

7

6

S/OCP

FB/OLP

GND

BR

DRV

PWM OSC

REG

SQ

R

Slope

Compensation

6.4 V

Feedback

Control

OCP

Drain Peak Current

Compensation

7 V

12.8 V

LEB

OLP

OVP

TSD

Startup

UVLO

Brown-In/

Brown-Out

1

3

5

Pin List Table

(LF2003)

Number

Name

Function

1

D/ST

MOSFET drain, and input of the startup current

2

–

(Pin removed)

3

S/OCP

MOSFET source, and input of Overcurrent Protection (OCP) signal

4

VCC

Power supply voltage input for Control Part, and input of Overvoltage

Protection (OVP) signal

5

GND

Ground

6

FB/OLP

Feedback signal input for constant voltage control signal, and input of

Overload Protection (OLP) signal

7

BR

Input of Brown-In and Brown-Out detection voltage

3

5

7

1

4

6

D/ST

S/OCP

VCC

GND

FB/OLP

BR