STEVAL-ISA184V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – RoHS compliant

STEVAL-ISA184V1
5 V-12 V, 15 W double output isolated flyback converter based
on VIPer37LD
Data brief
Features
 Universal input mains range: 85 – 265 VAC;
frequency: 50 – 60 Hz
 Output voltage 1: 5 V / 1.2 A
 Output voltage 2: 12 V / 0.75 A
 Very compact size
 Standby mains consumption: < 40 mW at
230 VAC
 Average efficiency: > 75%
 EMI: according to EN55022-Class-B
 RoHS compliant
Description
The STEVAL-ISA184V1 evaluation board
implements an isolated flyback double output (5
V / 1.2 A and 12 V / 0.75 A) 15 W wide range
mains developed for general purpose
applications.
The core of the application is the VIPer37LD off-
line high voltage converter from the VIPerPlus
family.
The device is a high-voltage converter that
intelligently integrates an 800 V rugged power
MOSFET with PWM current-mode control.
The main characteristics of the evaluation board
are its small size and minimal BOM, high
efficiency and low standby consumption.
Extremely low consumption under no-load
conditions is ensured thanks to burst mode
operation, which reduces the average switching
frequency and minimizes all frequency-related
losses.
The VIPer37LD operates at 60 kHz fixed
frequency, and frequency jittering is implemented
to help meet the standards regarding
electromagnetic disturbance. The several
protections on the device like overvoltage,
overload, output short circuit, secondary winding
short, hard transformer saturation protection and
brown out protections improve the safety and
reliability of the design.
December 2016
DocID030129 Rev 1
For further information contact your local STMicroelectronics sales
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