BQ20Z45DBT

Battery Management Overview

The BQ20Z45DBT is a gas gauge IC compliant with the System Battery Specification (SBS) version 1.1, manufactured by Texas Instruments. It utilizes Impedance Track technology for accurate battery state-of-charge estimation. The device operates within a supply voltage range of 4.5 V to 25 V and supports lithium-ion and lithium-polymer battery chemistries. It is housed in a 38-pin Thin-Shrink Small Outline Package (TSSOP). The component functions as a fuel gauge for battery management systems.

Battery Management Feature Summary

• Impedance Track technology for precise state-of-charge calculation
• System Battery Specification 1.1 compliance
• Support for lithium-ion and lithium-polymer batteries

Battery Management Applications

• Battery management systems
• Portable electronic devices
• Laptop computers

Battery Management Procurement Notes

Verify the specific suffix against official documentation, as variants such as DBTR or DBT-R1 may exist with different packaging configurations. Confirm current production status, as some listings indicate this part may be not recommended for new designs. Ensure compatibility with the target battery chemistry and system voltage requirements before procurement.

Battery Management Selection Notes

Select this component when SBS 1.1 compliance and Impedance Track accuracy are required for single-cell lithium-based battery monitoring. Consider the TSSOP-38 package constraints and operating temperature range of -40°C to +85°C. Evaluate if the specific output voltage and current capabilities meet the host controller interface needs.

Battery Management Part Context

This part belongs to the BQ20Z series of gas gauges from Texas Instruments. It is designed for applications requiring detailed battery information reporting via SMBus. The series includes various packages and suffixes tailored for different manufacturing and assembly requirements.

Battery Management Replacement Considerations

Check for updated revisions or alternative parts within the BQ20Z family. Verify pin-to-pin compatibility if substituting with variants like BQ20Z45DBTR.