DESCRIPTION
●The BENCHMARQ bq2057 series advanced Lithium-Ion (Li-Ion) and Lithium-Polymer (Li-Pol) linear charge-management ICs are designed for cost sensitive and compact portable electronics. They
●combine high-accuracy current and voltage regulation, battery conditioning, temperature monitoring, charge termination, charge-status indication, and AutoComp charge-rate compensation in a single 8-pin IC. MSOP, TSSOP, and SOIC package options are offered to fit a wide range of end applications.
●FEATURES
●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
●Requires Small Number of External Components
●0.3 V Dropout Voltage for Minimizing Heat Dissipation
●Better Than ±1% Voltage Regulation Accuracy With Preset Voltages
●AutoCompDynamic Compensation of Battery Pack’s Internal Impedance to Reduce Charge Time
●Optional Cell-Temperature Monitoring Before and During Charge
●Integrated Voltage and Current Regulation With Programmable Charge-Current and High or Low-Side Current Sensing
●Integrated Cell Conditioning for Reviving
● Deeply Discharged Cells and Minimizing Heat
● Dissipation During Initial Stage Of Charge
●Charge Status Output for Single or Dual Led or Host Processor Interface
●Automatic Battery-Recharge Feature
●Charge Termination by Minimum Current
●Automatic Low-Power Sleep Mode When VCC Is Removed
●EVMs Available for Quick Evaluation
●Packaging: 8-Pin SOIC, 8-Pin TSSOP, 8-Pin MSOP
