BQ296231DSGT

Battery Management Overview

The BQ296231DSGT is a secondary overvoltage protection IC for lithium-ion battery packs with two to four series cells. It features a fixed delay timer and an active-high FET driver output. The device provides a regulated 3.15 V output capable of sourcing up to 2 mA to power always-on circuits like real-time clocks. It operates within a supply voltage range of 3 V to 20 V and draws only 1 µA in standby mode when the output is disabled.

Battery Management Feature Summary

• Provides independent overvoltage monitoring for each cell in 2-, 3-, or 4-series lithium-ion configurations
• Includes an internal fixed delay timer that triggers the output pin upon detecting an overvoltage condition
• Delivers a stable regulated output voltage to drive always-on loads such as RTC oscillators
• Features self-disable functionality to cut off the regulated output when battery voltage drops below a threshold

Battery Management Applications

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

Battery Management Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm the exact overvoltage threshold and delay time options, as these vary across the BQ2962 family. Ensure the package type matches the design requirements. Confirm RoHS compliance status through official documentation before finalizing procurement specifications.

Battery Management Selection Notes

Select this component for applications requiring precise secondary protection for multi-cell lithium-ion batteries. The choice depends on the required regulated output voltage level and the specific delay timing needed for the FET driver. Consider the low standby current consumption for portable devices where battery longevity is critical.

Battery Management Part Context

This part belongs to the BQ2962 series of high-precision, low-power overvoltage protectors designed by Texas Instruments. The series supports various output voltages and delay times to accommodate different battery pack architectures and system requirements while maintaining a compact footprint.

Battery Management Replacement Considerations

Compatible substitutes within the same family include BQ296230DSGT and BQ296232DSGT. Verify that the alternative part number matches the required regulated output voltage and delay timer duration to ensure functional equivalence.