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SRK1000B - Adaptive synchronous rectification controller

Download the SRK1000B datasheet PDF. This datasheet also covers the SRK1000 variant, as both devices belong to the same adaptive synchronous rectification controller family and are provided as variant models within a single manufacturer datasheet.

Description

SRK1000 / SRK1000A /SRK1000B are controllers intended for secondary side synchronous rectification (SR) in flyback converters, suitable for operation in QR and mixed CCM/DCM fixed frequency circuits.

They provide a high-current gate-drive output, capable of driving N-channel Power MOSFETs.

Features

  • Secondary side synchronous rectification controller optimized for flyback converter.
  • Suitable for QR and mixed CCM/DCM fixed frequency operation.
  • Wide Vcc operating voltage range 3.75 to 32 V.
  • CC regulation operation down to 2 V output supported.
  • Very low quiescent current in low consumption mode (160 μA).
  • High-voltage sensing input for SR MOSFET drain-source voltage (100 V AMR).
  • Operating frequency up to 300 kHz.
  • Hi.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SRK1000-STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by STMicroelectronics

Part Number Description
SRK1000 Adaptive synchronous rectification controller
SRK1000A Adaptive synchronous rectification controller
SRK1001 Adaptive synchronous rectification controller
SRK2000A Synchronous rectifier smart driver
SRK2001 Adaptive synchronous rectification controller

Full PDF Text Transcription

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SRK1000 / SRK1000A /SRK1000B Datasheet Adaptive synchronous rectification controller for flyback converter SOT23-6L Product status link SRK1000 / SRK1000A /SRK1000B Product summary Order code SRK1000 SRK1000ATR SRK1000BTR Package SOT23-6L Packing Tape and reel Product label Features • Secondary side synchronous rectification controller optimized for flyback converter. • Suitable for QR and mixed CCM/DCM fixed frequency operation. • Wide Vcc operating voltage range 3.75 to 32 V. • CC regulation operation down to 2 V output supported. • Very low quiescent current in low consumption mode (160 μA). • High-voltage sensing input for SR MOSFET drain-source voltage (100 V AMR). • Operating frequency up to 300 kHz. • High-current gate-drive output for N-MOSFET.
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