Datasheet Summary
Preliminary Data Sheet
Standalone Linear Li-Ion Battery Charger with Thermal Regulation
GENERAL 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 is high integrated charger, there is no external current sense resistor and MOSFET, and no Blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die...