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STRA6251M - Flyback Switching Regulator

Download the STRA6251M datasheet PDF. This datasheet also covers the STR-A6251M variant, as both devices belong to the same flyback switching regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

and applications information is provided in Application Note 28103.40, Series STRA6200 Flyback Switching Regulators.

The products described herein are manufactured in Japan by Sanken Electric Co., Ltd.

for sale by Allegro MicroSystems, Inc.

Key Features

  • 67 kHz PWM with ±5% Frequency Jittering Cost Reduction of EMI Noise Filtering.
  • Rugged 650 V Avalanche-Rated MOSFET Simplified Surge Absorption No VDSS Derating Required.
  • Low rDS(on) (3.95 Ω maximum).
  • Auto-Burst Mode for Stand-By Operation or Light Loads Less Transformer Audible Noise.
  • Built-In Leading Edge Blanking.
  • Soft Start and Low Start-Up Current Start-Up Circuit Disabled in Operation.
  • Low Operating Current (4 mA max).
  • Automatic Burst Stand-By (inter.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (STR-A6251M_AllegroMicroSystems.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
g n i h tors c t i a Sw egul R STR-A6251M Universal-Input/15 W 67 kHz Flyback Switching Regulator The STR-A6251M is a 67 kHz PWM topology (with ±5% frequency jittering for minimum EMI) regulator specifically designed to satisfy the requirements for increased integration and reliability in flyback converters. It incorporates a primary control and drive circuit with an avalanche-rated power MOSFET. This is a higher-frequency version of the STR-A6251. Covering the power range from below 21 watts for a 230 VAC input, or to 15 watts for a universal (85 to 264 VAC) input, this device 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.