BQ296224DSGT

Battery Management Overview

The BQ296224DSGT is a secondary overvoltage protection device for 2-series, 3-series, and 4-series lithium-ion battery packs. It features an integrated 3.15 V regulated output capable of sourcing up to 2 mA to power always-on circuits like RTC oscillators. The device monitors each cell individually for overvoltage conditions, triggering a fixed-delay timer before activating the output pin. It operates within a supply voltage range of 3 V to 20 V and includes self-disable functionality to prevent battery depletion when voltage drops below a threshold.

Battery Management Feature Summary

• Provides individual cell overvoltage monitoring for 2-, 3-, and 4-series lithium-ion configurations
• Integrates a 3.15 V regulated output with 2 mA maximum current capability
• Features factory-set overvoltage thresholds with high precision accuracy
• Includes self-disable logic to automatically cut regulated output during low-voltage states

Battery Management Applications

• Laptop computers
• Ultrabooks
• Medical devices
• Uninterruptible Power Supplies (UPS)
• Backup battery systems

Battery Management Procurement Notes

Verify the specific suffix '24' corresponds to the required 3.15 V output voltage option and the appropriate FET driver delay time configuration. Confirm that the WSON-8 package and operating temperature range meet the design requirements. Ensure compatibility with the target lithium-ion chemistry and series count before finalizing procurement.

Battery Management Selection Notes

Select this component when precise secondary overvoltage protection is required for multi-cell lithium-ion packs. The integrated 3.15 V regulator simplifies designs needing a stable supply for auxiliary components without external regulation. Consider the fixed delay options if specific timing constraints exist for fault indication relative to other protection stages in the battery management system.

Battery Management Part Context

This part belongs to the BQ2962 family of overvoltage protectors designed by Texas Instruments. The family offers various output voltage options (3.0 V, 3.15 V, 3.3 V) and delay timer settings to accommodate different application needs. All variants share the same compact 2 mm x 2 mm WSON-8 footprint and low-power architecture.

Battery Management Replacement Considerations

Other BQ2962 variants such as BQ296202DSGT or BQ296212DSGT may serve as functional substitutes if their specific output voltage and delay timer configurations align with the design requirements. Verify that the replacement part matches the 3.15 V output specification and the necessary overvoltage threshold settings.