Infineon Technologies Quasi Resonant CoolSET™ Power ICs

Infineon Quasi-Resonant CoolSET™ Power ICs are optimized for off-line switch power supplies in cascode configurations. These Infineon ICs are housed in single packages with two separate chips: one is a controller chip and the other is an HV MOSFET chip. The ICs can achieve lower EMI and higher efficiency with improved digital frequency reduction through the proprietary novel Quasi-Resonant operation. The enhanced Active Burst Mode enables flexibility in standby power range selection. The product has a wide operation range (10.0V to 25.5V) of IC power supply and lower power consumption.

Features

  • Integrated power IC
  • 650V /800V avalanche rugged CoolMOS™
  • 650V /800V startup cell
  • Digital frequency reduction with decreasing load
  • Cycle-by-cycle current limitation with fold-back correction
  • Built-in digital soft-start
  • Active Burst Mode for <50mW standby power 
  • Latch-off mode for short-winding and output voltage
  • Enhanced integrated protection functions
  • Modulated gate drive

Applications

  • Auxiliary power supplies
    • Home appliances/white goods
    • TVs
    • PCs
    • Servers
  • Blu-ray players
  • Set-top boxes
  • LCD/LED Monitors

Typical Application Circuit

Application Circuit Diagram - Infineon Technologies Quasi Resonant CoolSET™ Power ICs
Publié le: 2017-03-29 | Mis à jour le: 2026-01-14