BQ20Z45DBTR

Battery Management Overview

The BQ20Z45DBTR is a battery management integrated circuit manufactured by Texas Instruments, classified under fuel gauges and power management ICs. It supports Lithium-ion and Lithium Polymer battery types with an operating supply voltage range of 4.5 V to 25 V. The device provides an output current capability of 1 mA and handles output voltages up to 25 V. It is housed in a TSSOP-38 package designed for surface mount installation. The component operates within a temperature range of -40°C to +85°C and carries a humidity sensitivity rating.

Battery Management Feature Summary

• Complies with SMBus 1.1 standards for gas gauge communication
• Integrates Impedance Track technology for accurate state-of-charge monitoring

Battery Management Applications

• Portable systems requiring battery life optimization
• Lithium-ion battery pack management
• Lithium Polymer battery pack management

Battery Management Procurement Notes

Verify the specific revision suffix and manufacturing date code against the latest datasheet before procurement. Confirm that the TSSOP-38 package dimensions align with the target PCB footprint. Ensure compatibility with the host system's SMBus interface requirements. Check for any updated environmental compliance documentation relative to the purchase date.

Battery Management Selection Notes

Select this component for applications requiring SMBus 1.1 compliance and Impedance Track technology. Verify that the 4.5 V to 25 V operating voltage range matches the battery pack configuration. Ensure the TSSOP-38 package fits the available board space. Consider the -40°C to +85°C operating temperature range for environmental suitability.

Battery Management Part Context

This part belongs to the BQ20Z series of fuel gauges from Texas Instruments. It is designed for single-cell lithium-based battery packs. The device integrates advanced algorithms for capacity tracking and cycle counting. It serves as a key component in portable electronics for accurate battery status reporting.

Battery Management Replacement Considerations

Check for direct pin-to-pin replacements within the BQ20Z family. Verify functional equivalence regarding Impedance Track support and SMBus compliance. Review change lists for any parameter deviations between original and substitute parts.