LNK501G - Power Integrations Inc.

LNK501G Energy Efficient/ CV/CC Switcher for Very Low Cost Chargers and Adapters

LinkSwitch is specifically designed to replace all linear transformer/ RCC chargers and adapters in the ≤ 3 W universal range at equal or lower system cost with much higher performance and energy efficiency. LinkSwitch introduces a revolutionary topology for the design of low power switching power supplies that rivals the simplicity and low cost of linear ad.

Features

hermal and current limit protection
• Meets all single point failure requirements with only one additional clamp capacitor
• Controlled current in CC region provides inherent soft-start
• Optional opto feedback improves output voltage accuracy LinkSwitch D C S Wide Range HV DC Input DC Output (VO) (a) VO ±10% VO ±5% ±20%
* For Circuit Shown Above IO (b) ±20%
* With Optional Secondary Feedback
*
* IO
*Estimated tolerance achievable in high volume production including transformer and other component tolerances.
*
*See Optional Secondary Feedback section. PI-2776-091302 Figure 1. Typical Appl.