BQ296202DSGR

Battery Management Overview

The BQ296202DSGR is a secondary protection integrated circuit designed for lithium-ion battery packs consisting of two, three, or four series-connected cells. It provides overvoltage protection (OVP) with high precision and includes a regulated output supply capable of delivering up to 2 mA. The device monitors each cell individually and triggers an internal fixed delay timer upon detecting overvoltage conditions. It features a self-disable function that cuts off the regulated output when battery voltage drops below a specific threshold to prevent deep discharge.

Battery Management Feature Summary

• Provides individual cell overvoltage monitoring for 2-, 3-, and 4-series lithium-ion configurations
• Includes a regulated output supply with a maximum current capability of 2 mA
• Features a self-disable mechanism to protect against battery depletion
• Offers factory-set overvoltage thresholds with high accuracy

Battery Management Applications

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

Battery Management Procurement Notes

Verify the specific overvoltage threshold and delay timer duration required for your application, as these are factory-set parameters unique to the suffix codes within the BQ2962xx family. Confirm compatibility with the target PCB footprint, which is an 8-pin WSON package. Ensure the design accounts for the low quiescent current specifications to maintain efficiency in standby modes.

Battery Management Selection Notes

Select this component when secondary overvoltage protection is required for multi-cell lithium-ion packs alongside a primary protection IC. Consider the BQ296202DSGR specifically if the application demands a regulated output supply for auxiliary circuits like real-time clocks. Evaluate the fixed delay timer options to ensure they align with the system's response time requirements during fault conditions.

Battery Management Part Context

This part belongs to the Texas Instruments BQ2962 series, which specializes in overvoltage protection for portable electronics. The series is characterized by its small 2 mm x 2 mm 8-pin WSON package and low power consumption. It serves as a critical safety component in battery management systems, complementing fuel gauges and primary protection circuits to ensure comprehensive battery safety.

Battery Management Replacement Considerations

Compatible substitutes include other variants within the BQ2962xx series, such as BQ296213DSGR or BQ296232DSGT, provided their specific OVP thresholds and delay times match the design requirements. Verify pinout and package compatibility before substitution.