BQ2057WTSTR

$1.43

Description：IC BATT CHG LI-ION 2CELL 8TSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:81ed0077f25c Category: Battery Chargers Brand: Texas Instruments

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Product introduction

BQ2057WTSTR is listed in the Battery Chargers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC BATT CHG LI-ION 2CELL 8TSSOP. Review the specifications below when checking this part for your BOM.

Battery Chargers specifications for BQ2057WTSTR

Description：IC BATT CHG LI-ION 2CELL 8TSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Battery Chemistry：Lithium Ion/Polymer
Voltage - Supply (Max)：15V
Operating Temperature：-20°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package：8-TSSOP
Number of Cells：2
Current - Charging：Constant - Programmable
Programmable Features：Current
Fault Protection：-
Charge Current - Max：-
Battery Pack Voltage：8.4V
Interface：-
Grade：-
Qualification：-

Battery Chargers datasheet and documents for BQ2057WTSTR

BQ2057WTSTR

Battery Chargers Overview

The BQ2057WTSTR is a low-dropout linear charge controller designed for two-cell lithium-ion or lithium-polymer battery packs. It provides an 8.4V output voltage and supports a maximum charging current of 2A. The device operates within a supply voltage range of 4.5V to 15V and functions across a temperature range of -20°C to +70°C. It utilizes an 8-pin TSSOP package with a width of 4.40mm. The component implements programmable constant-current charging and includes AutoComp technology for accurate charge termination.

Battery Chargers Feature Summary

Integrates AutoComp technology to ensure precise charge termination without requiring external thermistors.
Supports programmable constant-current charging via a single external resistor.
Features a low dropout regulator architecture suitable for wide input voltage ranges.

Battery Chargers Applications

Consumer electronics powered by two-cell lithium-ion battery packs
Portable devices utilizing lithium-polymer batteries
Battery management systems requiring simple linear charging solutions

Battery Chargers Procurement Notes

Verify the specific suffix 'G4' if RoHS compliance confirmation is required, as the base part number may appear in legacy documentation. Confirm that the TSSOP-8 package matches the target PCB footprint dimensions. Check for obsolescence notices or product change notifications prior to finalizing procurement plans.

Battery Chargers Selection Notes

Select this component for applications requiring a compact solution for two-cell Li-Ion or Li-Po batteries. Ensure the input voltage source remains within the 4.5V to 15V operational limit. Consider thermal dissipation requirements given the linear regulation topology at higher input-to-output voltage differentials.

Battery Chargers Part Context

This part belongs to the BQ2057 family of battery chargers from Texas Instruments. It serves as a dedicated charge management IC for portable applications. The WTSTR suffix indicates the tape-and-reel packaging format intended for automated surface-mount assembly processes.