November 2016

DocID030054 Rev 1

1/6

For further information contact your local STMicroelectronics sales

office

www.st.com

STEVAL-ISA181V1

12 V / 600 mA high voltage flyback converter with remote

standby control using the VIPer0P

Data brief

Features



Smart standby architecture using Zero

Power Mode (ZPM) with IR remote on/off

control suitable for Air Conditioning

subsystems and other applications



Based on VIPer0P high voltage converter

with embedded 800V avalanche rugged

power MOSEFET and a current mode PWM

controller with a set of protections for

enhanced system reliability



Input power consumption in Zero Power

off by remote IR control) while supplying

microcontroller and IR receiver



Input power consumption at no load less

microcontroller consumption



Average efficiency > 80.2% compliant with

EuCoC rev. 5

– Tier 2 and EPS of DOE USA



Meets IEC55022 Class B conducted EMI

even with reduced EMI filter, thanks to the

frequency jittering feature



Meets IEC61000-4-2(ESD), IEC61000-4-4

(EFT) and IEC61000-4-5 (Surge)



RoHS compliant

Description

This SMPS system features an isolated flyback

converter based on VIPer0P and special STM32

core logic to manage the VIPer0P for extremely

low power consumption during ZPM while

supplying the microcontroller and IR receiver and

still maintaining relatively high overall efficiency

during normal operation. The IR remote interface

consists of a dedicated IR TX board and very low

consumption TIA / band pass filter RX.

In the ZPM idle state, the device is shut down

fully and the residual consumption from the

by pulling the OFF pin to SGND for more than 10

ms and exits ZPM (resuming normal switching)

by pulling the ON pin to SGND for more than 20

μs.

This function can be tested by acting on the

tactile switches connected to the ON and OFF

pins.

The proposed power supply is set in isolated

flyback topology with 12 V output voltage and 7.2

W nameplate power.