BQ27741YZFT-G1

Battery Management Overview

The BQ27741YZFT-G1 is a pack-side Impedance Track fuel gauge for single-cell Lithium-ion and Lithium Polymer batteries. It operates within a supply voltage range of 2.8 V to 5 V and provides an output voltage of 2.5 V with a maximum output current of 250 mA. Designed for battery capacities between 500 mAh and 16,000 mAh, it functions in temperatures from -40°C to +85°C. The component utilizes a DSBGA-15 surface-mount package.

Battery Management Feature Summary

• Integrates hardware-based protection against overvoltage, undervoltage, overcurrent during charge or discharge, and short circuits.
• Employs the patented Impedance Track algorithm to deliver precise state-of-charge metrics including remaining capacity, runtime, voltage, and temperature.
• Resides on the battery pack side to minimize system firmware development requirements while recording critical battery parameters over its lifespan.

Battery Management Applications

• Single-cell Lithium-ion battery packs
• Lithium Polymer battery systems
• Embedded non-removable battery applications

Battery Management Procurement Notes

Verify the specific suffix G1 to confirm the Impedance Track variant. Ensure the DSBGA-15 package matches your PCB footprint. Confirm compatibility with your host microcontroller interface. Validate that the operating temperature range meets your environmental requirements. Check for any recent Product Change Notifications affecting specifications.

Battery Management Selection Notes

Select this component when precise pack-side monitoring is required without extensive firmware overhead. It is suitable for applications needing integrated safety protections alongside accurate state-of-charge data. Consider the DSBGA-15 package size constraints. Ensure the battery chemistry aligns with supported Lithium-ion and Lithium Polymer types.

Battery Management Part Context

This device belongs to the BQ27741-G1 series of fuel gauges. It serves as a microcontroller peripheral designed for single-cell battery management. The series focuses on providing accurate电量计量 through proprietary algorithms while reducing system integration complexity.

Battery Management Replacement Considerations

BQ27742YZFT-G1 is a documented alternative within the same family.