BQ76972PFBR

Battery Management Overview

The BQ76972PFBR is a high-accuracy battery monitor and protector designed for 3-series to 16-series lithium-ion, lithium-polymer, and LiFePO4 battery packs. It operates within a supply voltage range of 4.7 V to 80 V and features cell voltage measurement accuracy of ±3.0 mV. The device integrates a highly configurable protection subsystem and supports active cell balancing. It is housed in a 48-pin TQFP package with dimensions of 7x7 mm, suitable for surface-mount installation.

Battery Management Feature Summary

• High-accuracy cell voltage monitoring for multi-cell series configurations
• Integrated protection subsystem with configurable thresholds
• Supports active cell balancing for optimized pack performance
• Compatible with multiple lithium-based chemistries including LiFePO4

Battery Management Applications

• Portable electronic devices requiring multi-cell battery management
• Power tools utilizing lithium-ion or LiFePO4 battery packs
• Uninterruptible power supplies (UPS) systems
• Electric vehicle auxiliary battery monitoring

Battery Management Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration, such as reel or cut tape options. Confirm that the component meets RoHS compliance requirements for your target market. Check for moisture sensitivity level ratings to determine proper storage and handling procedures during assembly. Ensure the selected variant matches the required operating temperature range for your application environment.

Battery Management Selection Notes

Select this component when designing systems requiring precise voltage monitoring across 3 to 16 series cells. Consider its integration capabilities if active balancing is needed to extend battery life. Evaluate the thermal performance within the -40°C to +85°C operating range. Compare pin compatibility and software configuration options against alternative monitors in the BQ769xx family for system integration ease.

Battery Management Part Context

This part belongs to Texas Instruments' BQ76952/BQ76972 family of battery monitors. These devices are engineered for high-accuracy applications where reliable protection and monitoring are critical. The PFBR suffix indicates a specific tape-and-reel packaging format intended for automated surface-mount assembly processes in high-volume manufacturing environments.

Battery Management Replacement Considerations

Direct substitutes include other variants within the BQ76952/BQ76972 family, such as the BQ76952PFBR, provided pinout and feature sets align with design requirements. Verify functional equivalence regarding accuracy specifications and supported cell counts before substitution.