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WS9442P PDF даташит

Спецификация WS9442P изготовлена ​​​​«Winsemi» и имеет функцию, называемую «Non-isolated Buck Offline LED Driver».

Детали детали

Номер произв WS9442P
Описание Non-isolated Buck Offline LED Driver
Производители Winsemi
логотип Winsemi логотип 

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WS9442P Даташит, Описание, Даташиты
WS9442P Product Description
Features
Critical Conduction Mode Operation
Internal 500V Power MOSFET
Gate Drive and No Auxiliary Winding
±3% LED Current Accuracy
Efficiency up to 93%
LED Short Circuit Protection
LED Open Circuit Protection
Current Sense Resistor Short Protection
Thermal Regulation Function
External PWM Dimming
Applications
LED Bulb Lights
LED Panel Lights
LED Strings
Typical Application Circuit
Non-isolated Buck Offline LED Driver
Description
The WS9442P is a high precision buck constant current LED
driver and is applied to non-isolated buck LED power system with
AC input voltage of 85VAC-265VAC. The WS9442P integrates a
500V power MOSFET, and can achieve excellent constant current
performance with very few external components, so the system
cost and size are minimized. The driver operates in critical
conduction mode, and the output current does not change with the
inductance and LED output voltage. The operating current of the
IC is 200uA, so it doesn’t need the auxiliary winding for supplying
the chip, thus simplify design and reduce cost.
The WS9442P adopts intelligent temperature control and
thoroughly solves the problem of LED flickering under high
temperature. It integrates an external dimming pin which inputs
PWM signal and can dim by changing the duty cycle of the PWM
signal. The WS9442P offers full protection functions to improve
the system reliability, including LED open circuit protection, LED
short circuit protection, CS resistor short circuit protection and
thermal regulation function.
The WS9442P is available in DIP-7 Package.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
Copyright@Winsemi Microelectronics Co., Ltd., All right reserved.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
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WS9442P Даташит, Описание, Даташиты
WS9442P Product Description
Pin Configuration and Marking Information
The WS9442P is available in DIP-7 Package. The top marking is shown as below:
WS9442PD7PProduct Code
AProduct Code
XInternal Code
BCYInternal Code For QC
YMXD/C
Pin Definition
Pin No.
1
2
3
4
5,6
7
Block Diagram
Name
GND
ROVP
DIM
VCC
DRAIN
CS
Ground
Description
Over Voltage Protection Setting Pin. Connect a resistor to GND
Dinmming Pin.Must be floated when not in use.
Power Supply Pin
Internal HV Power MOSFET Drain
Current Sense Pin. Connect a sense resistor between this pin and the GND
pin.
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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WS9442P Даташит, Описание, Даташиты
WS9442P Product Description
Ordering Information
Package
7-Pin DIP-7, Pb-free
Recommended Operation Conditions
Part Number
Package
WS9442PD7P
DIP7
Marking
WS9442PD7P
Input voltage
175VAC-264VAC
90VAC-264VAC
Part Number
WS9442PD7P
Maximum output power
120V/280mA
160V/220mA
80V/300mA
Absolute Maximum Ratings
Symbol
Parameter
Range
Unit
VDS
Internal HV MOSFET drain voltage
-0.3~500
V
ICC_MAX
VCC pin maximum sink current
10 mA
VROVP
LED open circuit protection voltage regulation
-0.3~7
V
VCS
Current sense pin input voltage
-0.3~7
V
PDMAX
Power dissipation DIP7
0.9 W
TJ
Maximum operating junction temperature
150
TSTG
Minimum/Maximum Storage temperature
-55~150
NoteStresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device.
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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Номер в каталогеОписаниеПроизводители
WS9442Non-isolated Buck Offline LED DriverWinsemi
Winsemi
WS9442PNon-isolated Buck Offline LED DriverWinsemi
Winsemi

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