STEVAL-ISA005V1: 1.6W, 15V @ 100mA, +5V @ 60mA

Summary

Design is for applications where an off-line power supply without isolation between input and output can be tolerated and rather low output current is required. In this case the converter should be simple and low cost. These requirements can be satisfied by a step-down converter based on monolithic device VIPer12AS that incorporates the PWM controller together with the Vertical power MOSFET switch in a SO8 package.

The presented power supply has two variants. The first is a buck (step-down) converter with a positive output voltage referenced to the common ground. The second one with negative output voltage is a buck-boost converter. The presented reference board incorporates both variants by different assembly options.

Specifications

Manufacturer STMicroelectronics
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Multi Output
Eval Board Part Number 497-4932-ND
Eval Board Supplier STMicroelectronics
Eval Board Board not Stocked
AC Voltage 115 V
230 V
Universal (115 / 230V)
Outputs and Type 2 Non-Isolated
Voltage Out: Highest Current First 15V, 5V
Current Out 100mA, 60mA
Output Power 1.6 W
Efficiency @ Conditions >78%, 120 VAC, 15V @ 100 mA
>75%, 120V in, 15V @ 50 mA
>74%, 240 VAC, 15V @ 100 mA
>71%, 240 VAC, 15V @ 50 mA
No-load Input Power @ Voltage - Not Given
Features Light Load Mode
Over Current Protection
Over Voltage Protection
Short Circuit Protection
Thermal Protection
Under Voltage Protection, Brown-Out
Zero Load Regulation
Switching Frequency 60 kHz
Internal Switch Yes
Component Count + Extras 20 + 4
Voltage In 85 ~ 265 VAC
Application / Target Market Computers
DVD/Blu-ray Players
Set-Top Boxes
White Goods
Design Author STMicroelectronics
Main I.C. Base Part VIPer12AS
Date Created By Author 2007-07
Date Added To Library 2011-05

Support Documents & Media

VIPer12A-E - Datasheet STEVAL-ISA005V1 - Data Brief

Media

STEVAL_ISA005V1_Schematic.JPG STEVAL_ISA005V1_Board.JPG STEVAL_ISA005V1_Chart.JPG