UP4054A Overview
The UP4054A is a plete constant-current /constant-voltage linear charger for single cell lithium-ion batteries. It’s TSOT23-5 package and low external ponent count make the UP4054A ideally suited for portable applications. Furthermore, the UP4054A is specifically designed to work within USB power specifications.
UP4054A Key Features
- FEATURE
- Programmable Charge Current Up to 500mA
- No MOSFET, Sense Resistor or Blocking Diode
- Constant-Current/Constant-Voltage Operation
- 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