STEVAL-VP12201F: 5W, 12V @ 416mA, 85 ~ 265 VAC

Summary

The STEVAL-VP12201F evaluation board implements a 12 V - 5 W isolated flyback converter developed for general purpose applications supplied from 85 to 265 VAC.

The reference design is built around the new VIPer122LS offline high-voltage converter from the VIPerPlus family, with embedded 730 V Power MOSFET and PWM current-mode control.

The main characteristics of the evaluation board are its small size and minimal BOM, high efficiency, low stand-by consumption and tight line and load regulation over the entire input and output range. Extremely low consumption under no-load condition is ensured thanks to burst mode operation, which reduces the average switching frequency and minimizes all frequency related losses.

VIPer122LS operates at fixed frequency 60kHz with frequency jittering to meet the standards regarding electromagnetic disturbance.

Highly compact size
Stand-by mains consumption: < 30 mW at 230 VAC
Average efficiency: > 77%
Meets IEC55022 Class B conducted EMI requirments even with reduced EMI filter, thanks to the frequency jittering feature

Specifications

Manufacturer	STMicroelectronics
Category	AC/DC and DC/DC Conversion
Sub-Category	AC/DC SMPS - Single Output
Eval Board Part Number	497-STEVAL-VP12201F-ND
Eval Board Supplier	STMicroelectronics
Eval Board	Normally In Stock
AC Voltage	Universal (115 / 230V)
Outputs and Type	1 Isolated
Voltage Out	12 V
Current Out	416 mA
Output Power	5 W
Features	Frequency Jitter for EMI Light Load Mode Soft Start Thermal Protection
Efficiency @ Conditions	>77%, 115V in, 12V @ 10 ~ 325 mA >75%, 230V in, 12V @ 15 ~ 416 mA
No-load Input Power @ Voltage	<21 mW @ 115 VAC <30 mW @ 230 VAC
Switching Frequency	60 kHz
Internal Switch	Yes
Component Count + Extras	26 + 2
Voltage In	85 ~ 265 VAC
Design Author	STMicroelectronics
Application / Target Market	Power: AC Adapters Power: Auxiliary Power Supply Power: Industrial Power White Goods
Main I.C. Base Part	VIPer122LS
Date Created By Author	2020-10
Date Added To Library	2021-02