CoolSET™ PWM fixed frequency

High-efficiency, low-standby PWM flyback ICs engineeried for demanding AC-DC power conversion

Overview

CoolSET™ PWM fixed frequency (FF) controllers pair with external HV MOSFETs for fast, reliable high-voltage startup and built-in brown-in protection. Abnormal line conditions are detected automatically, keeping the design robust under real-world stress. Enhanced overtemperature and fault handling reduce field failures and enable faster time to market.

Key Features

  • Up to 125 kHz switching frequency
  • Supports CCM and DCM operation
  • Pairs with up to 1200V Si MOS
  • Pairs with up to 1700 V CoolSiC™
  • Integrated feedback error amplifier
  • Active burst mode profile
  • Peak current limiting
  • Over- and under-voltage protection
  • Brown-in protection
  • Overtemperature protection
  • Entry-exit active burst mode

Products

About

Portfolio of CoolSET™ PWM fixed frequency flyback ICs

CoolSET™ PWM fixed frequency (FF) flyback ICs address both single-phase and three-phase AC-DC power conversion. Pairing with external high-voltage MOSFETs up to 1700 V CoolSiC™ extends designs into three-phase use cases, while lower-voltage options serve single-phase applications. The result is one scalable platform spanning demanding industrial and offline power conversion.

High energy efficiency

Ultra-low standby power, frequency jittering for reduced EMI, and high-voltage startup directly from the rectified line keep the design lean and robust. Built-in OLP, VCC, and OVP protection cut BOM count while active burst mode handles load jumps with ease. Digital frequency reduction and slope compensation for CCM deliver best-in-class efficiency across the full load range.

Portfolio of CoolSET™ PWM fixed frequency flyback ICs

CoolSET™ PWM fixed frequency (FF) flyback ICs address both single-phase and three-phase AC-DC power conversion. Pairing with external high-voltage MOSFETs up to 1700 V CoolSiC™ extends designs into three-phase use cases, while lower-voltage options serve single-phase applications. The result is one scalable platform spanning demanding industrial and offline power conversion.

High energy efficiency

Ultra-low standby power, frequency jittering for reduced EMI, and high-voltage startup directly from the rectified line keep the design lean and robust. Built-in OLP, VCC, and OVP protection cut BOM count while active burst mode handles load jumps with ease. Digital frequency reduction and slope compensation for CCM deliver best-in-class efficiency across the full load range.

Documents

Design resources

Developer community