LN2054 - Natlinear

LN2054 Standalone Linear Li-Ion Battery Charger

The LN2054 is a complete constant-current /constant -voltage linear charger for single cell lithium-ion batteries. Its ThinSOT package and low external component count make the LN2054 ideally suited for portable applications. Furthermore, the LN2054 is specifically designed to work within USB power specifications. No external sense resistor is needed, and no.

Features

include charge current monitor, CHRG GND BAT Without Risk of Overheating
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 Charges Single Cell Li-Ion Batteries Directly from USB Port Preset 4.2V Charge Voltage with ±1% Accuracy Charge Current Monitor Output for Gas Gauging Automatic Recharge Charge Status Output Pin C/10 Charge Termination 25µA Supply Current in Shutdown 2.9V Trickle Charge Threshold (LN2054) Soft-Start Limits Inrush Current Available in 5-Lead SOT-23 and SOT89 Package
■ Applications
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 Cellular Telephones, PDAs, MP3 Players Charging Docks and Cradles Bluetooth Applications th
■ Package
 SOT-23-5L .