iW1830-EVAL1

Evaluation Board for 15W Single-Output

Switch-Mode Power Supply

Rev. 1.0

Evaluation Board Summary

© 2016 Dialog Semiconductor

www.dialog-semiconductor.com

1 of 7

18-May-2016

1 Description

The iW1830-EVAL1 evaluation board implements a 15W power supply

based on Dialog Semiconductor’s iW1830 AccuSwitch™ digital off-

line power supply controller IC. The evaluation board supplies a 5V, 3A

regulated output voltage using a primary-side controlled quasi-resonant

flyback converter that meets the U.S. Department of Energy’s most recent

level VI efficiency standard and the EU’s Code of Conduct, Version 5, Tier

2 standard for both active mode and no-load standby power consumption.

The iW1830 controller integrates a 700V power MOSFET to lower the

power supply BOM cost and uses Dialog’s advanced PrimAccurate™

digital control technology to eliminate the need for external secondary-side feedback components, further reducing

component count and cost, while improving reliability. It operates in quasi-resonant mode to improve efficiency and

with minimal external filtering. Proprietary control technology allows high efficiency across a broad range of loads,

which enables the iW1830 to meet stringent international standards for power supply efficiency.

2 Features

● Output voltage: 5V

● Output current: 3A

● Total output power: 15W max.

● Integrated 700V MOSFET

● Active mode efficiency > 82%

● Supports high capacitance loads up to 6,000mF

3 Applications

● Power Supplies for:

x

White Goods

x

Home Appliances

x

Industrial Control

x

Network Devices

a minimum of EMI filtering components

● Quasi-resonant operation

● Low component count and small PCB footprint

● iW1830 IC protections:

x

Output short-circuit, over-current, over-voltage

x

Input voltage protection: brown-out, brown-in,

unplug

x

Over-temperature protection - internal sensor