Description
This evaluation board is an offline, wide-range, VIPer22A-E dual-output power supply with a switching frequency of 60 kHz and is set up for secondary regulation with an optocoupler. One output delivers 5 V at 1 A and a second output delivers 12 V at 0.42 A, making for a total output power of 10 W. The evaluation board meets Blue Angel Norms, consuming less than 1 W total when working in standby mode. The board operates in burst mode when both the output loads are reduced to zero and the output voltages still remain regulated. STEVAL-ISA004V1

Features
■ Switch-mode general-purpose power supply
■ Input: 90 to 264 VAC 50/60 Hz
■ Output: 12 V @ 0.42 A and 5 V @ 1 A
■ Burst-mode operation in standby for Blue Angel operation
■ Current mode control
■ Switching frequency: 60 kHz
■ 75% efficiency
■ Auxiliary undervoltage lockout with hysteresis
■ Output short-circuit protection