bq2057
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 ponents
D 0.3 V Dropout Voltage for Minimizing Heat
Dissipation
D Better Than ±1% Voltage Regulation Accuracy
With Preset Voltages
D Autopt Dynamic pensation 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 Highor Low-Side Current Sensing
D Integrated Cell Conditioning for Reviving
Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Stage Of Charge
D Charge Status Output for Single or Dual Led or Host Processor Interface
D Automatic Battery-Recharge Feature
D Charge Termination by Minimum Current D Automatic Low-Power Sleep Mode When VCC
Is Removed
D EVMs Available for Quick Evaluation D Packaging: 8-Pin SOIC, 8-Pin TSSOP, 8-Pin
MSOP bq2057x SN or bq2057x TS SOIC (SN) or TSSOP (TS)...
