bq2057 Linear Charge Management

Texas Instruments

Description

bq2057, bq2057C bq2057T, bq2057W SLUS025F * MAY 2001 * REVISED JULY 2002 ADVANCED LINEAR CHARGE MANAGEMENT IC FOR SINGLEĆ AND TWOĆCEL.
The BENCHMARQ bq2057 series advanced Lithium-Ion (Li-Ion) and Lithium-Polymer (Li-Pol) linear charge-management ICs are designed for costsensitive and.

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Datasheet Specifications

Part number: bq2057
Manufacturer: Texas Instruments ↗
File Size: 1.54 MB
Datasheet: bq2057-etcTI.pdf
Description: Linear Charge Management

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 Batt

Applications

* The bq2057 continuously measures battery temperature using an external thermistor. For safety, the bq2057 inhibits charge until the battery temperature is within user-defined thresholds. The bq2057 then charges the battery in three phases: conditioning, constant current, and constant voltage. If th

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