WS9252 datasheet(4/8 Pages) WINSEMI

Part #	WS9252

Description	High Precision PSR Constant Current LED Driver

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Manufacturer	WINSEMI [Shenzhen Winsemi Microelectronics Co., Ltd]

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WINSEMI MICROELECTRONICS

WS9252ProductDescription

Electrical Characteristics (Unless otherwise specified, VCC=8V and TA =25 ℃)

Symbol

Parameter

Test condition

Min

Typ

Max

Units

Supply Voltage Section

VDD_CLAMP

VDD Clamping Voltage

4mA

17.4

18.3

19.4

V

UVLO_on

VDD Power Supply

16.1

17.1

18.1

V

UVLO_off

VDD Under Voltage

Lockout

8.5

9

9 .5

V

VCC_OVP

VCCover voltage

protection level

17.9

18.9

19.9

V

Ist

Start up current

35

uA

Iop

Operating current

152

uA

Current Sense Section

Ipp

Primary Peak Current

484

508

531

mV

TLEB

Lead Edge Blanking

500

ns

TDELAY

Shutdown Delay

200

ns

D_max

Maximum Duty Cycle

42

%

FeedbackInputSection

Toff_max

MaximumDemagnetization

time

420

us

Toff_min

MinimumDemagnetizationt

ime

4

us

Ton_max

MaxmiumON time

100

us

Vfb

FB voltage sense level

1

V

Power MOSFET

Isource

GATE Pin Sourcing

Current

100

mA

Rds_off

Resistor Of Gate

Driver(OFF)

20

Ω

Over TemperatureProtection

T_comp

Thermal Regulation

Temperature

147

℃

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WS9252 Datasheet(PDF) 4 Page - Shenzhen Winsemi Microelectronics Co., Ltd

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