Title
Specification
Application
Author
Document
Number
Date
Revision
Engineering Prototype Report for EP-16 -
2.75 W Charger/Adapter Using LNK501
(LinkSwitch
)
85 VAC to 265 VAC Input,
5.5 V, 500 mA Output
Low Cost Charger/Adapter
PI Applications
EPR-16
17-May-04
1.6
Features
•
Very low cost, low component count charger/adapter – replaces
linear transformer based solutions
•
Extremely simple circuit configuration designed for high volume,
low cost manufacturing
–
No surface mount components required
•
Small EE13 transformer allows compact size
•
Approximate constant voltage, constant current (CV/CC) primary
sensed output characteristic
–
No optocoupler or sense resistors required
•
Efficiency greater than 71%
•
No-load power consumption <300 mW at 265 VAC
•
No Y1 safety capacitor required
–
Only transformer bridges primary-to-secondary safety barrier
–
Ultra low leakage design (<5
µA)
The products and applications illustrated herein (including circuits external to the products and transformer
construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign
patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found
at
Power Integrations
5245 Hellyer Avenue, San Jose, CA 95138 USA.
Applications Hotline: Tel: +1 408 414 9660 Fax: +1 408 414 9760
www.powerint.com
POWERINT [ POWER INTEGRATIONS, INC. ]
