Infineon, Resonant Controller 12-Pin, PG-DSO-12 ICE5QR1680BGXUMA1

The Infineon Quasi-resonant 800 V CoolSET is the 5 th generation of Quasi-resonant integrated power IC optimized for off-line switch power supply in cascode configuration. It is housed in single package with 2 separate chips
one is controller chip and other is HV MOSFET chips. The IC 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 of IC power supply and lower power consumption. The numerous protection functions including the robust line protection to support the protections of the power supply system in failure situations.

Enhanced Active Burst Mode with selectable entry and exit standby power
Active Burst Mode to reach the lowest standby power <100 mW
Fast start-up achieved with cascode configuration
Digital frequency reduction up to 10 zero crossings
Built-in digital soft start
Cycle-by-cycle peak current limitation
Maximum on/off time limitation to avoid audible noise during start up and power down
Robust line protection with input OVP and brownout

Datasheet - ICE5QR1680BGXUMA1