LNK4115D Overview
The LinkSwitchTM-4 family of ICs dramatically simplifies low power CV/CC charger design by eliminating an optocoupler and secondary control circuitry. The LinkSwitch-4 family adaptive BJT drive technology uses bined base and emitter switching to boost switching performance and deliver higher efficiency, wider Reverse Bias Safe Operating Area (RBSOA) margin and the flexibility to acmodate a wide range of low cost...
LNK4115D Key Features
- Dynamic base drive technology provides flexibility in choice of BJT
- Extends RBSOA of BJT
- Dramatically reduces sensitivity to BJT gain
- pensates for input line voltage variations
- pensates for cable voltage drop
- pensates for external ponent temperature variations
- Very accurate IC parameter tolerances using proprietary trimming technology
- Frequency up to 65 kHz to reduce transformer size
- The minimum peak current is fixed to improve transient load response
- Easy start for starting into capacitive loads (LNK4114D, LNK4115D)
LNK4115D Applications
- Chargers for cell/cordless phones, PDAs, MP3/portable audio