BQ27620YZFT-G1

Battery Management Overview

The BQ27620YZFT-G1 is a system-side Impedance Track fuel gauge designed for single-cell lithium-ion and lithium polymer batteries. It operates within a supply voltage range of 2.8 V to 4.5 V and supports battery capacities from 300 mAh to 8000 mAh. The device functions reliably across an extended temperature range of -40°C to +85°C. It utilizes a DSBGA-15 package for surface-mount installation.

Battery Management Feature Summary

• Implements Texas Instruments' Impedance Track algorithm for accurate state-of-charge monitoring
• Provides system-side fuel gauge functionality with host calibration capabilities
• Supports dynamic configuration via Data Flash Interface (DFI)

Battery Management Applications

• Portable electronic devices requiring precise battery monitoring
• Medical equipment utilizing single-cell lithium batteries
• Industrial handheld instruments

Battery Management Procurement Notes

Verify component authenticity through authorized channels as the part may be discontinued or subject to obsolescence notices. Confirm that the specific suffix matches design requirements, noting that packaging variations do not alter electrical function. Ensure compatibility with existing host system calibration data before integration.

Battery Management Selection Notes

Select this component for applications requiring system-side gas gauge accuracy without internal battery management circuitry. It is suitable for designs needing support for large capacity cells up to 8000 mAh. Consider the DSBGA-15 footprint constraints during PCB layout planning.

Battery Management Part Context

This component belongs to the BQ27620-G1 series of Impedance Track fuel gauges. It shares functional similarities with other system-side gauges in the family but is distinct from pack-side or impedance track variants like the BQ27520 or BQ27545.

Battery Management Replacement Considerations

BQ27621YZFR-G1A is listed as a possible replacement.