ICE2QS03
Features
- -
- -
- -
- -
- -
- Quasiresonant operation till very low load Active burst mode operation at light/no load for low standby input power (< 100m W) Digital frequency reduction with decreasing load Power cell for VCC pre-charging with constant current Built-in digital soft-start Foldback correction and cycle-by-cycle peak current limitation Auto restart mode for VCC Overvoltage protection Auto restart mode for VCC Undervoltage protection Auto restart mode for openloop/overload protection Latch-off mode for adjustable output overvoltage protection Latch-off mode for Short-winding protection
Description
ICE2QS03 is a quasi-resonant PWM controller optimized for off-line switch power supply applications such as LCD TV, CRT TV and notebook adapter. The digital frequency reduction with decreasing load enables a quasi-resonant operation till very low load. As a result, the overall system efficiency is significantly improved pared to other conventional solutions. The active burst...
