This document is a data brief for the STEVAL-ISA013V1 dual output off-line wide range 24W power supply evaluation board from STMicroelectronics. The evaluation board features a switch mode general purpose power supply with an input voltage range of 85 to 264Vac @ 50/60Hz and output voltages of 12V @ 1A and 5V @ 2.4A, delivering a peak output power of 24W. It also includes various protection features and meets the EN55022 Class B EMI specification.
The STEVAL-ISA013V1 is a dual output off-line wide range general-purpose power supply evaluation board capable of delivering up to 24W through two outputs, +5V and +12V. It is configured for secondary regulation with optocoupler feedback and is designed for use with the VIPer53 controller.
| Input Voltage | 85 to 264Vac @ 50/60Hz |
|---|---|
| Output Voltage 1 | 12V @ 1A |
| Output Power (peak) | 24W |
| Switching Frequency | 100kHz |
| Efficiency | 75% |
| Efficiency (Full Load) | 78% at 115Vac |
| Standby Power Consumption | Less than 1W |
The switching frequency is set at 100kHz through R3 and C5.
Yes, it meets Blue Angel norms because it consumes less than 1W in burst mode during standby operation.
The board uses VIPer53, STTA106, BYW98-200, TL431A, STPS5L40, and 1.5KE220A.