ICE1QS01
Features
P-DIP-8-4
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Quasiresonant Operation Primary and Secondary Regulation Primary Current Simulation Standby Input Power < 1 W Low Power Consumption Very Low Start-up Current Soft-Start for noiseless Start-up Standby Burst Mode with and without Control Signal for lowered Output Voltages Digital Frequency Reduction in small Steps at Decreasing Load Over- and Undervoltage Lockout Switch Off at Mains Undervoltage Mains Voltage Dependent Fold Back Point Correction Ringing Suppression Time Controlled from Output Voltage Free usable Fault parator
P-DSO-8-3
P-DSO-8-3
Functional Description
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The ICE1QS01 is optimized to control free running flyback converters with and without Power Factor Correction (with PFC Charge Pump). The switching frequency is reduced in small steps with decreasing load towards a minimum of 20 k Hz in standby mode. This function is performed by a digital circuit to avoid any jitter also with periodically pulsed loads. To provide...
