BQ296221DSGT

Battery Management Overview

The BQ296221DSGT is a high-accuracy, low-power overvoltage protector from the Texas Instruments BQ296xxx family. It provides robust protection for 2-series, 3-series, and 4-series Li-ion battery packs. The device features a regulated output supply with an output voltage of 3.3 V or 7 V and an output current of 14 mA. It operates within a power supply voltage range up to 20 V and consumes only 8 uA of quiescent current. Packaged in an 8-WSON (2x2) surface-mount package, it supports operating temperatures from -40°C to +110°C.

Battery Management Feature Summary

• Provides overvoltage protection for multi-cell lithium-ion battery configurations
• Integrates a regulated output supply for auxiliary circuit power
• Designed for ultra-low power consumption in portable applications

Battery Management Applications

• Protection circuits for 2-series Li-ion battery packs
• Protection circuits for 3-series Li-ion battery packs
• Protection circuits for 4-series Li-ion battery packs

Battery Management Procurement Notes

Verify the specific suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical characteristics. Ensure the component matches the required cell count configuration for your design. Check moisture sensitivity levels and reflow soldering profiles during assembly planning. Confirm RoHS compliance status if required by your manufacturing standards.

Battery Management Selection Notes

Select this component when designing protection for 2 to 4 series lithium-ion cells requiring integrated overvoltage detection. Consider the 8-WSON package size for space-constrained PCB layouts. Evaluate the 14 mA output capability to ensure it meets the load requirements of connected monitoring or balancing circuits. Verify that the 20 V maximum input rating aligns with the total pack voltage under all operating conditions.

Battery Management Part Context

This part belongs to the BQ2962xx family of battery protection ICs from Texas Instruments. These devices are engineered specifically for lithium-ion chemistry, offering precise voltage monitoring without external comparators. The family shares common architectural features but varies in specific threshold settings and output capabilities to suit different cell configurations.

Battery Management Replacement Considerations

Compatible substitutes include BQ296212DSGT and BQ296213DSGR. Verify functional equivalence regarding overvoltage thresholds and output current specifications before substitution. Ensure package dimensions and pin assignments match the existing footprint to avoid mechanical redesign.