JFET

5V-12V, 15W dual output isolated flyback converter based on VIPer37LE

STEVAL-ISA191V1

Overview

The STEVAL-ISA191V1 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 VIPer37LE, a new 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 evaluation board features a small size, minimal BOM, high efficiency and low standby consumption. Extremely low consumption under no-load conditions is ensured thanks to burst mode operation that reduces the average switching frequency and minimizes all frequency related losses.
VIPer37LE operates at 60 kHz fixed frequency. Frequency jittering is implemented to help meet electromagnetic disturbance standards, and the device implements several protections, including overvoltage, overload, output short circuit, secondary winding short, hard transformer saturation protection and brown out protection, for improved design safety and reliability.

Main features

Universal input mains range: 85 – 265 V_AC frequency: 50 – 60 Hz
Output voltage1: 5 V / 1.2 A
Output voltage2: 12 V / 0.75 A
Very compact size
Stand-by mains consumption: AC
Average efficiency: > 75%
EMI: according to EN55022-Class-B
RoHS compliant

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-23 08:33:33

Congratulations on my successful cracking of Cadence16.6!
I feel very happy when I see this picture:This is the cracking method:
Electronic design questions
[i=s]This post was last edited by paulhyde on 2014-9-15 09:28[/i]I am preparing for the National Electronic Design Competition. I plan to use AVR microcontrollers and FPGAs for measurement. How should
Please ignore the points
Just for points
Tube-in-tube energy-saving lamp manufacturer
Tube-in-tube , as a brand-new product, appeared in the energy-saving industry. It is well-loved by the world for its outstanding advantages, super-bright illumination and super-high power-saving rate.
dsp2407 network development
My brother is currently working on a project that combines dsp2407 and 8019 for network communication, but I don't know where to start. Please give me some advice, preferably with source code.
What to do if you have no motivation?
I don’t feel like studying recently, :funk: ..... It has been almost three years since I finished college, and I have basically learned nothing. I want to learn something useful, but when I study alon

Datasheet More

Circuits More