IW1818-EVAL Datasheet, PDF (1/6 Pages) Dialog Semiconductor – Evaluation Board for 10W Single-Output Switch-Mode Power Supply

iW1818-EVAL
Evaluation Board for 10W Single-Output
Switch-Mode Power Supply
1 Description
The iW1818-EVAL evaluation board implements a 10W power supply based
on Dialog Semiconductor’s iW1818 AccuSwitch™ digital off-line power supply
controller IC. The evaluation board supplies a 5V, 2A 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 iW1818 controller integrates an 800V power BJT transistor 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
help meet EMI standards. This quasi-resonant operation and Dialog’s EZ-EMI^® technology enable excellent EMI
performance with minimal external filtering. Proprietary control technology allows high efficiency across a broad range
of loads, which enables the iW1818 to meet stringent international standards for power supply efficiency.
2 Features
●● Wide input voltage range: 90V_AC to 264V_AC
●● Output voltage: 5V
●● Output current: 2A
●● Total output power: 10W max.
●● Integrated 800V BJT
●● Active mode efficiency > 80%
●● Supports high capacitance loads up to 6,000mF
●● Low no-load power: < 50mW (at 230 V_AC)
●● EZ-EMI^® technology: excellent EMI performance with
a minimum of EMI filtering components
●● Quasi-resonant operation
●● Low component count and small PCB footprint
●● iW1818 IC protections:
xx Output short-circuit, over-current, over-voltage
xx Input voltage protection: brown-out, brown-in,
unplug
xx Over-temperature protection - internal sensor
3 Applications
●● Power Supplies for:
xx White Goods
xx Home Appliances
xx Industrial Control
xx Network Devices
Evaluation Board Summary
www.dialog-semiconductor.com
Rev. 1.0
1 of 6
18-May-2016
© 2016 Dialog Semiconductor