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Latch-off mode for Short-winding protectionPersamaan Ic Jrc4558 By phemighpalti1985 Follow | Public.

Latch-off mode for adjustable output overvoltage protection.

Auto restart mode for openloop/overload protection.

Auto restart mode for VCC Undervoltage protection.

Auto restart mode for VCC Overvoltage protection.

Foldback correction and cycle-by-cycle peak current limitation.

Power cell for VCC pre-charging with constant current.

Digital frequency reduction with decreasing load.

Active burst mode operation at light/no load for low standby input power (< 100mW).

Quasiresonant operation till very low load.

All of these make the ICE2QS03 an outstanding Controller for quasi-resonant flyback converter in the market. The numerous protection functions give a full protection of the power supply system in failure situations.

Based on the BiCMOS technology, the product has a wide operation range (up to 26V) of IC power supply and lower power consumption. The active burst mode operation enables an ultra-low power consumption at standby mode with small and controllable output voltage ripple. As a result, the overall system efficiency is significantly improved compared to other conventional solutions. The digital frequency reduction with decreasing load enables a quasi-resonant operation till very low load. ICE2QS03 is a quasi-resonant PWM Controller optimized for off-line switch power supply applications such as LCD TV, CRT TV and notebook adapter. Integrated power cell for IC self-power supply.Digital frequency reduction for better overall system efficiency.

Active burst mode for low standby power.

Persamaan ic lm4558