توضیحات

FA5500AN – (FA5500A / FA5501A) Power Supply Control IC

FA5500A/FA5501A are control ICs for a power factor correction converter using critical conduction mode of operation. This IC uses a CMOS device with high dielectric strength (30V) to implement low power consumption. These ICs contain compensated current sense comparator for light load and open/short protection at feedback (FB) pin. Compensated current sense comparator for light load keeps output voltage constant from no-load to full-load. Open/short protection at FB pinstops output pulses when voltage divider to detect output voltage becomes fault. Features• Low current consumption by CMOS process Start-up : 20µA(max.), Operating : 1mA(typ.)• Drive circuit for connecting a power MOSFET directly• Output peak current, source : 500mA, sink : 1000mA• Compensated current sense comparator for light load • Open/short protection at feedback (FB) pin• Undervoltage Lockout FA5500A: 11.5V ON / 9V OFF FA5501A:13V ON / 9V OFF• Overvoltage protection• Restart timer• Package:  / SOP-8