WS2297B Datasheet, PDF (2/9 Pages) Shenzhen Winsemi Microelectronics Co., Ltd – Switch Power Supply PWM Controller

WS2297B Product Description
Typical Application Circuit
Pin Configuration and Marking Information
The WS2297B is available in DIP7 Package. The top marking is shown as below:
WS2297BD7P：Product Code
A：Product Code
X：Internal Code
BCY：Internal Code For QC
YMX：D/C
Pin Definition
Pin Name
NC
VDD
Pin No.
1
2
FB
3
CS
4
DRIAN
5/6
GND
7
Pin Type
NC
Power
Feedback
Input
Current
monitoring
Drain
Ground
Function Description
Hanged out
Power Supply
Feedback input pin. The PWM duty cycle is determined by voltage into this
pin and the current-sense signal at Pin 4
Current monitoring feed-back input pin.To determine whether to reach the
limit value.
The drain terminal of Power MOSFET,connected with the transformer
primary side.
Ground
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
www.winsemi.com Tel : [phone] Fax : [phone]
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