iW1830-EVAL

Evaluation Board for 15W Dual-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-EVAL evaluation board implements a dual-output, 15W power

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

line power supply controller IC. The evaluation board supplies two outputs,

12V/1A and 5V/0.5A, using a single primary-side controlled quasi-resonant

flyback converter.

The design implements two output voltages using one primary-side

controller and achieves the tight regulation required by high-reliability

applications such as white goods, home appliances and industrial control.

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

technology enable excellent EMI performance 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 voltages: 12V and 5V

● Output current: 12V - 1A, 5V - 500mA

● Total output power: 15W max.

● Integrated 700V MOSFET

● Active mode efficiency > 84%

● 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 external 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