Description
The BENCHMARQ bq2057 series advanced Lithium-Ion (Li-Ion) and Lithium-Polymer (Li-Pol) linear charge-management ICs are designed for costsensitive and compact portable electronics.
Features
- D Ideal for Single (4.1 V or 4.2 V) and Dual-Cell
(8.2 V or 8.4 V) Li-Ion or Li-Pol Packs
D Requires Small Number of External
Components
D 0.3 V Dropout Voltage for Minimizing Heat
Dissipation
D Better Than ±1% Voltage Regulation Accuracy
With Preset Voltages
D AutoCompt Dynamic Compensation of
Battery Pack’s Internal Impedance to Reduce Charge Time
D Optional Cell-Temperature Monitoring Before
and During Charge
D Integrated Voltage and Current Regulation
With Programmable Charge-Current and Hig.
bq2057-etcTI.pdf