BQ296228DSGT

Battery Management Overview

The BQ296228DSGT is a secondary overvoltage protection IC for 2-series lithium-ion battery packs. It operates within a supply voltage range of 3 V to 20 V and features a regulated output providing up to 2 mA at 4.55 V. The device monitors individual cell voltages, triggering an active-high output after a fixed delay upon detecting overvoltage. It consumes 4 µA during operation and 1.2 µA when disabled. Packaged in an 8-WSON (2x2 mm) with exposed pad, it functions between -40°C and +110°C.

Battery Management Feature Summary

• Provides dedicated overvoltage protection for each cell in 2-series lithium-ion configurations
• Includes a fixed delay timer to prevent false triggering before activating the output signal
• Delivers a regulated power supply output capable of driving always-on circuits like RTC oscillators
• Features self-disable functionality to cut power 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 'DSGT' against the manufacturer datasheet to confirm the exact overvoltage threshold and delay time options. Ensure the 8-WSON package footprint matches the design requirements. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning.

Battery Management Selection Notes

Select this component for applications requiring precise secondary overvoltage monitoring of 2-series lithium-ion cells. It is suitable where low quiescent current and integrated regulated output are necessary. Verify that the fixed delay timer meets system safety timing requirements and that the operating temperature range covers the intended environment.

Battery Management Part Context

This part belongs to the Texas Instruments BQ2962 series of battery protection ICs. The series offers various combinations of overvoltage thresholds and delay times to suit different battery chemistries and pack configurations. The BQ296228DSGT specifically targets 2-series setups with its designated electrical characteristics.

Battery Management Replacement Considerations

Other BQ2962 variants may serve as substitutes if they match the required overvoltage threshold and delay time. Verify pin compatibility and package dimensions before replacement.