BQ7694203PFBR

Battery Management Overview

The BQ7694203PFBR is a high-accuracy battery monitor and protector designed for lithium-ion, lithium-polymer, and LiFePO4 battery packs. It supports configurations from 3 to 10 series cells with a supply voltage range of 4.7 V to 55 V. The device operates within a temperature range of -40°C to +85°C and features a low quiescent current of 286 µA. Packaged in a TQFP-48 format, it integrates cell voltage monitoring, protection logic, and communication interfaces for comprehensive battery management.

Battery Management Feature Summary

• High-accuracy monitoring system for multi-cell battery stacks
• Configurable protection subsystem for over-voltage, under-voltage, and over-current conditions
• Integrated communication interface for system control and data retrieval
• Supports passive cell balancing capabilities

Battery Management Applications

• Lithium-ion battery pack management systems
• LiFePO4 battery protection applications
• Portable electronic devices requiring multi-cell power sources
• Industrial equipment battery monitoring

Battery Management Procurement Notes

Verify the specific suffix '03' against the manufacturer's official datasheet to confirm pinout compatibility and functional configuration. Ensure the TQFP-48 package dimensions match the target PCB footprint. Confirm that the operating voltage range aligns with the intended battery stack architecture before finalizing procurement.

Battery Management Selection Notes

Select this component when high accuracy is required for 3 to 10 series lithium-based battery packs. It is suitable for designs needing integrated protection alongside monitoring functions. Consider the TQFP-48 package size constraints and the 55 V maximum supply limit during schematic design. Evaluate thermal performance requirements given the +85°C maximum operating temperature specification.

Battery Management Part Context

This part belongs to the BQ76942 family of battery monitors from Texas Instruments. It shares core architectural features with other variants in the series but differs in specific configuration options defined by the ordering suffix. The family is designed for versatile application across various lithium chemistry types including Li-ion and LiFePO4.

Battery Management Replacement Considerations

Compatible substitutes include BQ7694201PFBR and BQ7694202PFBR. These parts share the same family functionality but may have different internal configurations or pin assignments. Verify datasheet specifications for each candidate to ensure electrical and mechanical compatibility.