Energy-Efficient Off-Line Switcher
LNK302/304-306 LinkSwitch™-TN Family
Lowest Component Count, Energy-Efficient Off-Line Switcher IC
Product Highlights
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Description
LNK302/304-306 LinkSwitch™-TN Family
Lowest Component Count, Energy-Efficient Off-Line Switcher IC
Product Highlights
Cost Effective Linear/Cap Dropper Replacement Lowest cost and component count buck converter solution Fully integrated auto-restart for short-circuit and open loop
fault protection – saves external component costs LNK302 uses a simplified controller without auto-restart for
very low system cost 66 kHz operation with accurate current limit – allows low cost
off-the-shelf 1 mH inductor for up to 120 mA output current Tight tolerances and negligible temperature variation High breakdown voltage of 700 V provides excellent input
surge withstand Frequency jittering dramatically reduces EMI (~10 dB)
Minimizes EMI filter cost High thermal shutdown temperature (+135 °C minimum)
Much Higher Performance Over Discrete Buck and Passive Solutions Supports buck, buck-boost and flyback topologies System level thermal overload, output short-circuit and open
control loop protection Excellent line and load regulation even with typical configuration High bandwidth provides fast turn-on with no overshoot Current limit operation rejects line ripple Universal input voltage range (85 VAC to 265 VAC) Built-in current limit and hysteretic thermal protection Higher efficiency than passive solutions Higher power factor than capacitor-fed solutions Entirely manufacturable in SMD
EcoSmart™– Extremely Energy Efficient Consumes typically only 50/80 mW...
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