SGM4054 Description
The SGM4054 is a plete constant-current/constantvoltage linear charger for single cell lithium-ion batteries. Its SOT23-5 small package and low external ponent count make the SGM4054 ideally suited for portable applications. Besides wall adapter’s 5V power supply, the SGM4054 is specifically designed to work within USB power specifications.
SGM4054 Key Features
- Programmable Charge Current Up to 800mA
- No External MOSFET, Sense Resistor or Blocking
- 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
- Automatically Recharge
- Charge Status Indication Pin
- C/10 Charge Termination
- 25 A Supply Current in Shutdown Mode