BQ2057TTSTRG4

Battery Chargers Overview

The BQ2057TTSTRG4 is a low dropout linear charge controller designed for two-cell lithium-ion or lithium-polymer battery packs. It operates with a supply voltage range of 4.5V to 15V and supports a maximum battery pack voltage of 8.2V. The device features an integrated AutoComp circuit that automatically adjusts the charging termination threshold based on the cell's internal impedance, ensuring accurate charge completion without requiring external sense resistors. It utilizes an 8-TSSOP surface-mount package.

Battery Chargers Feature Summary

• Integrates AutoComp technology for automatic adjustment of charge termination thresholds based on cell impedance
• Functions as a low dropout linear charge controller suitable for compact designs
• Supports standard charging profiles for lithium-ion and lithium-polymer chemistries

Battery Chargers Applications

• Portable electronic devices utilizing two-cell battery configurations
• Consumer electronics requiring precise single-resistor charge management
• Battery-powered equipment needing automated termination control

Battery Chargers Procurement Notes

Verify component authenticity through authorized distributors due to discontinuation status. Confirm RoHS3 compliance and lead-free solder finish specifications. Ensure compatibility with existing PCB footprints for the 8-TSSOP package. Validate thermal performance within the specified operating temperature range during integration.

Battery Chargers Selection Notes

Select this component for applications requiring simplified bill of materials by eliminating external current-sense resistors. Suitable for systems where space constraints favor the TSSOP package over larger alternatives. Consider the specific input voltage requirements relative to the adapter capabilities to ensure proper regulation.

Battery Chargers Part Context

This part belongs to the Texas Instruments BQ2057 family of battery chargers. It serves as a pin-compatible and functionally equivalent successor to the BQ2057TTS, offering updated manufacturing processes while maintaining identical electrical characteristics and pin assignments for legacy design upgrades.

Battery Chargers Replacement Considerations

The BQ2057TTSTR is a parameter-equivalent tape-and-reel alternative from the same manufacturer. Verify package dimensions and marking differences before substitution in existing assemblies.