www.winsemi.com

Tel : +86-755-8250 6288

Fax : +86-755-8250 6299

3/6

WINSEMI MICROELECTRONICS

WINSEMI MICROELECTRONICS

WINSEMI MICROELECTRONICS

WINSEMI MICROELECTRONICS

WINSEMI MICROELECTRONICS

Ordering Information

Package

Marking

Part Number

8-Pin ESOP8,Pb-free

WS9931EP

WS9931EP

Suggestion operating range:

Symbol

parameter

value

unit

TA

Operating temperature

-50-135

℃

Absolute Maximum Ratings

Parameter

Range

unit

VIN

-0.3~6

V

LEDN

-0.3~60

V

Junction Temperature

-40~150

℃

Lead Temperature（Soldering, 10 sec.）

260

℃

Storage Temperature

-55~150

℃

Note : Stresses above those listed Absolute Maximum Ratings may cause permanent damage to the device. These are stress

ratings only, functional operation of the device should not over these or any of these absolute maximum ratings. Operating above

the absolute maximum-rated conditions may affect device reliability.

Electrical Characteristics

VIN=5V and T=25℃, unless otherwise stated.

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Supply Voltage Section

VIN clamp voltage

4.8

5

5.2

V

VIN operation current

400

500

600

uA

The maximum voltage drop

between OVP voltage and

minimum load voltage

50

60

V

Io

Adaptive output current

100

240

300

mA

Thermal Section

Thermal Regulation

Temperature

120

℃

Thermal Shutdown

Temperature

135

℃

Thermal Hysteresis

Temperature

18

℃