▪ Flyback regulator with 1000V 9Ω MOSFET

▪ Single 400V bulk capacitor for single-phase input

up to 460VAC

▪ Frequency doubling for heavy load operation (up to

15W in single-phase and 21W and above in

3-phase), with programmable duration (maximum

time depends on thermal capability)

▪ Valley switching to reduce switching losses

▪ Programmable constant frequency PWM operation

▪ Burst mode operation at light load

▪ Protection features: short-circuit protection (SCP),

overload protection (OLP), input undervoltage

lockout (VinUV), Input OVP, VCC overvoltage

protection (VccOV), VCC undervoltage lockout

(VccUV) and over-temperature protection (OTP).

▪ 4KV surge compliance per IEC61000-4-5 with

cap-saving operation