STEVAL-VP318L1F: 18W, 15V @ 1.2A, 90 ~ 265 VAC

Summary

The STEVAL-VP318L1F reference design implements a 15 V - 18 W SSR isolated flyback converter developed for general purpose applications operating from 85 to 265 VAC.

The design is built around the new VIPer318L offline high-voltage converter from the VIPerPlus family with 800 V avalanche-rugged Power MOSFET, PWM current-mode control, fixed 60 kHz switching frequency with jittering to satisfy electromagnetic disturbance regulations, and burst mode for light load management.

The board features a small size, minimal BOM, high efficiency, low stand-by consumption and tight line and load regulation over the entire input and output range. Input overvoltage and undervoltage protections with separate and settable trigger thresholds are available on the respective OVP and UVP pins.

Universal input mains range: 85 – 265VAC
Frequency: 50-60Hz
Output voltage: 15 V
Output current: 1.2 A
Stand-by mains consumption: < 55mW at 230VAC
Average efficiency: > 85%
Meets IEC55022 Class B conducted EMI even with reduced EMI filter, thanks to the frequency jittering feature
RoHS compliant
WEEE compliant

Specifications

Manufacturer	STMicroelectronics
Category	AC/DC and DC/DC Conversion
Sub-Category	AC/DC SMPS - Single Output
Eval Board Part Number	497-STEVAL-VP318L1F-ND
Eval Board Supplier	STMicroelectronics
Eval Board	Normally In Stock
AC Voltage	Universal (115 / 230V)
Outputs and Type	1 Isolated
Voltage Out	15 V
Current Out	1.2 A
Output Power	18 W
Features	Frequency Jitter for EMI Light Load Mode Over Voltage Protection PFM or PWM Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Efficiency @ Conditions	>86% Avg @ 230 VAC in >85% Avg @ 115 VAC in
No-load Input Power @ Voltage	42.6 mW @ 115 VAC 44.5 mW @ 230 VAC
Switching Frequency	60 kHz
Internal Switch	Yes
Component Count + Extras	37 + 12
Voltage In	85 ~ 265 VAC
Design Author	STMicroelectronics
Application / Target Market	Distributed Power Systems HVAC
Main I.C. Base Part	VIPer318L
Date Created By Author	2020-11
Date Added To Library	2022-09