SOUTHCHIP SC3057
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. It operates in QR and DCM with valley switching for high efficiency.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
● Valley switching operation @QR/DCM
● Burst Mode @ Light Load & No Load
● Internal over temperature protection
● Comprehensive Protection ➢ VDD over voltage protection ➢ VDD under voltage lock out ➢ Cycle by cycle current limiting ➢ Two level over current protection ➢ Output over voltage protection ➢ Output short protection ➢ Over Load protection
● QFN6*8 package available 3
APPLICATIONS
● USB-PD and QC Chargers● AC-DC adapters for Portable Devices Copyright © 2021, Southchip Semiconductor Technology (Shanghai) Co., Ltd. 1 SOUTHCHIP SEMICONDUCTOR SC3057 PRELIMINARY DATASHEET SOUTHCHIP CONFIDENTIAL SUBJECT TO CHANGE 4 Device Information...