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SC3057 - High Frequency Quasi-Resonant Flyback Converter

Datasheet Summary

Description

SC3057 is a high frequency, quasi-resonant flyback PWM converter with 650V GaN integrated (QR/DCM), which can achieve high efficiency and reliability.

The converter with x-cap discharge function built-in high voltage start-up circuit through HV pin.

Features

  • of frequency jittering and smart driving function can minimize the noise and improve EMI performance. 2 Features.
  • Integrated 650V GaN.
  • Integrated high-voltage startup circuit with brown in/out detection.
  • With x-cap discharge function.
  • Internal Soft Start.
  • Integrated segment power supply circuit for extra- wide output range.
  • Ultra-low operation current @Burst mode/Fault Mode.
  • Up to 175KHz Switching Frequency.
  • Frequency Jitter for EMI improvement.
  • Val.

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Datasheet preview – SC3057

Datasheet Details

Part number SC3057
Manufacturer SOUTHCHIP
File Size 915.41 KB
Description High Frequency Quasi-Resonant Flyback Converter
Datasheet download datasheet SC3057 Datasheet
Additional preview pages of the SC3057 datasheet.

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Full PDF Text Transcription

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SOUTHCHIP SEMICONDUCTOR SC3057 PRELIMINARY DATASHEET SOUTHCHIP CONFIDENTIAL SUBJECT TO CHANGE High Frequency Quasi-Resonant Flyback Converter With GaN Integrated 1 Descriptions SC3057 is a high frequency, quasi-resonant flyback PWM converter with 650V GaN integrated (QR/DCM), which can achieve high efficiency and reliability. The converter with x-cap discharge function built-in high voltage start-up circuit through HV pin. Therefore, extremely low standby power consumption and super-fast start-up time can be obtained by HV pin. SC3057 provides an adaptive switching frequency foldback to achieve higher efficiency in the whole loading range. It operates in QR and DCM with valley switching for high efficiency. And at no load, the IC will operate in burst mode to reduce power consumption.
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