Primary-Side Regulation PWM Power Switch

OB2211 is an offline PWM Power Switch for low power AC/DC charger and adaptor applications. It operates in primary-side sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below. By On-Bright Electronics, Inc.
OB2211 's PackagesOB2211 's pdf datasheet

OB2211 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
OB2211 Application circuits
OB2211 circuits
This is one application circuit of OB2211,If you need more circuits,please download OB2211's pdf datasheet.

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