BQ34210IPWRQ1

Battery Management Overview

The BQ34210IPWRQ1 is an automotive-qualified single-cell system fuel gauge designed for lithium-based battery chemistries, including Lithium Iron Phosphate (LiFePO4), Lithium-ion, and Nickel Metal Hydride (NiMH). It operates within a supply voltage range of 2.45 V to 4.5 V and provides a regulated output of 1.85 V at up to 500 uA. The device functions in temperatures from -40 C to +85 C with a quiescent current of 50 uA. It is housed in a TSSOP-14 package suitable for surface mount installation.

Battery Management Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Supports multiple battery chemistries including LiFePO4 and NiMH
• Integrated fuel gauge functionality for single-cell systems

Battery Management Applications

• Automotive electronic systems requiring certified power management
• Single-cell battery packs utilizing Lithium Iron Phosphate cells
• Nickel Metal Hydride battery monitoring applications

Battery Management Procurement Notes

Verify the specific revision level and tape-and-reel specifications against the manufacturer's latest datasheet before ordering. Confirm that the AEC-Q100 qualification status meets your project's reliability requirements. Ensure the TSSOP-14 footprint matches your PCB design guidelines. Check for any recent product change notifications regarding packaging or material composition updates.

Battery Management Selection Notes

Select this component when automotive certification is mandatory for single-cell battery monitoring. It is appropriate for designs using LiFePO4 or NiMH cells where standard lithium-ion gauges are unsuitable. Consider the 50 uA operating current for low-power standby requirements. Verify that the 2.45 V minimum supply voltage aligns with your system's lowest expected battery voltage during operation.

Battery Management Part Context

This part belongs to the BQ34210 series of fuel gauges from Texas Instruments. The 'Q1' suffix indicates automotive qualification. It serves as a specialized solution for single-cell applications where chemical flexibility beyond standard lithium-ion is required. The series integrates gas-gauging algorithms tailored for specific battery characteristics.

Battery Management Replacement Considerations

Consult official substitution lists for direct replacements. Generic fuel gauges may lack the specific chemical support for LiFePO4 or NiMH. Automotive-grade alternatives must also hold AEC-Q100 certification to maintain system compliance.