Universal-Input / 15 Or 20 W Flyback Switching Regulators | STR-A6251D And STR-A6252D

The STR-A6251D and STR-A6252D are 50 kHz PWM topology (with 5% frequency jittering for minimum EMI) Regulators specifically designed to satisfy the requirements for increased integration and reliability in flyback converters. They incorporate a primary control and drive circuit with avalanche-rated Power MOSFETs The STR-A6252 features higher allowable switching current and lower on-resistance. The STR-A6251D is also available for 67 kHz operation.
Covering the power range from below 21 watts or 24 watts for a 230 VAC input, or to 15 or 20 watts for a universal (85 to 264 VAC) input, these devices CAN be used in a wide range of applications, from DVD players and VCR player/recorders to ac adapters for cellular phones and digital cameras. An auto-burst standby function reduces power consumption at light load, while multiple protections, including the avalanche-energy guaranteed MOSFET provide high reliability of system design.
By Allegro MicroSystems, Inc.
STR-A6251D 's PackagesSTR-A6251D 's pdf datasheet
STR-A6252D




STR-A6251D Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
STR-A6251D Application circuits
STR-A6251D circuits
This is one application circuit of STR-A6251D,If you need more circuits,please download STR-A6251D's pdf datasheet.


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