BQ294504DRVR

Battery Management Overview

The BQ294504DRVR is a battery protection integrated circuit manufactured by Texas Instruments, designed for overvoltage protection of lithium-ion and lithium-polymer batteries. It supports two or three series-connected cells with an operating supply voltage range of 3 V to 25 V. The device features a fixed output voltage threshold of 4.35 V and provides an output current capability of 4.5 mA. Packaged in a compact 6-pin WSON (WSON-6) surface-mount format, it operates within a temperature range of -40°C to +85°C while consuming a typical quiescent current of 1 µA.

Battery Management Feature Summary

• Provides dedicated overvoltage protection for multi-cell lithium-based battery packs
• Integrates high-precision voltage monitoring with low standby power consumption
• Utilizes a small footprint surface-mount package suitable for space-constrained designs

Battery Management Applications

• Protection circuits for portable electronic devices using Li-Ion batteries
• Safety management systems for consumer electronics with multi-cell configurations
• Battery pack overvoltage prevention in industrial control modules

Battery Management Procurement Notes

Verify the specific suffix 'R' indicates tape-and-reel packaging when sourcing components. Confirm that the 4.35 V threshold aligns with the target cell chemistry requirements. Ensure the WSON-6 thermal pad is properly connected to the PCB ground plane for optimal performance. Check RoHS compliance status against regional regulatory standards before finalizing procurement orders.

Battery Management Selection Notes

Select this component when designing protection for two or three series lithium cells requiring a 4.35 V cutoff. Consider the 1 µA quiescent current for applications prioritizing extended battery life. Evaluate the 6-WSON package size against available board real estate constraints. Compare against other BQ2945xx variants if different voltage thresholds or cell counts are required for the specific application.

Battery Management Part Context

This part belongs to the BQ2945xx family of battery protection ICs from Texas Instruments. These devices focus on single-function overvoltage protection rather than comprehensive fuel gauging. The DRVR suffix denotes the standard reel packaging variant. It complements other PMIC solutions by providing dedicated safety monitoring for individual cell strings.

Battery Management Replacement Considerations

Direct substitutes include BQ294504DRVT with identical electrical characteristics but cut-tape packaging. Other family members like BQ294524 offer similar functionality with adjusted voltage thresholds.