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WS3441 PDF даташит

Спецификация WS3441 изготовлена ​​​​«WINSEMI» и имеет функцию, называемую «Non-isolated Buck Offline LED Driver».

Детали детали

Номер произв WS3441
Описание Non-isolated Buck Offline LED Driver
Производители WINSEMI
логотип WINSEMI логотип 

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WS3441 Даташит, Описание, Даташиты
WS3441 ProductDescription
Features
Critical Conduction Mode Operation
Internal 500V Power MOSFET
No Auxiliary Winding
Ultra Low Operating Current
±3% LED Output Current Accuracy
Efficiency up to 93%
LED Open Protection
LED Short Protection
Current Sensing Resistor Short Protection
Thermal Regulation Function
Available in SOP-8 Package and DIP-7 Package
Applications
LED Candle Light
LED Bulb, Spot Light
T8/T10 LED String
Other LED Lighting
Typical Application(SOP-8 Package)
Non-isolated Buck Offline LED Driver
Description
The WS3441 is a high precision buck constant current
LED driver. The device operates in critical conduction mode
and is suitable for 85Vac~265Vac universal input offline LED
lighting.
The WS3441 integrates a 500V power MOSFET. The
operating current of the IC is very low. So it doesn’t need the
auxiliary winding for supplying the chip. It can achieve
excellent constant current performance with very few external
components, so the system cost and size are minimized.
The WS3441 utilizes patent pending current control
method. It can achieve precise output current and excellent
line regulation. The driver operates in critical conduction
mode, the output current does not change with the inductance
and LED output voltage.
The WS3441 offers rich protection functions to improve
the system reliability, including LED open circuit protection,
LED short circuit protection, VCC under voltage protection,
CS resistor short circuit protection and thermal regulation
function.
The WS3441 is available in SOP-8 Package and DIP-7
Package.
AttentionA 22pF capacitor can be parallel with Rovp and a resistor can be parallel with the Vcc capacitor.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
Copyright@Winsemi Microelectronics Co., Ltd., All right reserved.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
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WS3441 Даташит, Описание, Даташиты
WS3441 ProductDescription
Typical Application(DIP-7 Package)
AttentionA 22pF capacitor can be parallel with Rovp and a resistor can be parallel with the Vcc capacitor.
Pin Configuration and Marking Information
The WS3441 is available in SOP-8 Package and DIP-7 Package,the top marking is shown as below:
WS3441S8P
AProduct Code
XInternal Code
BCYInternal Code For QC
YMXD/C
WS3441D7P
AProduct Code
XInternal Code
BCYInternal Code For QC
YMXD/C
Pin Definition
Name
GND
ROVP
NC
VCC
DRAIN
CS
Pin No.
1
2
3
4
5/6
7/8
Description
Ground
Over Voltage Protection Setting Pin. Connect a resistor to GND
No Connection. Should be connected to GND(Pin1)
Power Supply Pin
Internal HV Power MOSFET Drain.
Current Sense Pin. Connect a sense resistor between this pin and GND pin.
www.wWiInNSsEeMmI iM.cICoROmELECTTReOlN:IC+S86-7W5I5N-S8EM2I50M6IC2R8O8ELECTROFNaICxS: +86W-IN7S5E5M-I82M5IC0RO6E2L9EC9TRONICS
WINSEMI MICROELECTRONICS
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WS3441 Даташит, Описание, Даташиты
WS3441 ProductDescription
Internal Block Diagram
Ordering Information
Package
8-Pin SOP-8, Pb-free
7-Pin DIP-7, Pb-free
Recommended Operation Conditions
Part Number
Package
WS3441S8P
SOP8
WS3441D7P
DIP7
Marking
WS3441S8P
WS3441D7P
Input voltage
175VAC-264VAC
90VAC-264VAC
175VAC-264VAC
90VAC-264VAC
Part Number
WS3441S8P
WS3441D7P
Maximum output
power
80V/220mA
150V/150mA
80V/150mA
80V/280mA
120V/220mA
80V/220mA
60V/300mA
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
www.winsemi.com Tel : +86-755-8250 6288 Fax : +86-755-8250 6299
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
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