BQ296216DSGT

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Function:	Battery Protection
Battery Chemistry:	Lithium-Ion
Number of Cells:	2 ~ 4
Fault Protection:	Over Voltage
Interface:	--
Operating Temperature:	-40°C ~ 110°C (TA)
Package / Case:	8-WFDFN Exposed Pad
Supplier Device Package:	8-WSON (2x2)

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Introduction of BQ296216DSGT

BQ296216DSGT is a 3-cell Li-ion protection IC from Texas Instruments. It provides protection for multi-cell Li-ion batteries which are widely used for consumer and commercial products. BQ296216DSGT also provides higher reliability and more accurate voltage and temperature readings than other battery protection ICs. In addition, it has features such as active balancing, cell balancing, under-voltage protection, and over-current protection.

Application Field

BQ296216DSGT is mainly used in consumer electronics, portable and wearable applications, in which it provides protection to the Li-ion battery. It is suitable for 3-cell series Li-ion batteries with a voltage range of 3.6V to 10.8V and a protection range up to 8A. It protects the battery by forming an open circuit when conditions such as over-voltage, under-voltage, over-temperature or over-current occur.

Work Principle

BQ296216DSGT has a unique power management design that allows it to monitor and control the charging, discharging and safety of multi-cell Li-ion batteries. The internal circuit consists of a controller, a power FET, a current sense amplifier and two comparators. The current sense amplifier is used to detect the voltage and current information from the battery. It then sends the information to the controller and the two comparators, which compare the battery voltage, current and temperature readings against the programmed over and under voltage thresholds. If any thresholds are exceeded, the power FET is turned on and the current is routed away from the battery, thereby protecting it from overcharging, over-discharging and other damage. Moreover, BQ296216DSGT also includes an active balancing feature, which is used for balancing the voltage between cells and helps reduce peak charge and discharge currents. This reduces the risk of any single cell being overcharged or over-discharged. In addition, the BQ296216DSGT also provides an over-temperature protection feature which will protect the battery from damage in high temperature environments. The IC also has an undervoltage protection feature which will protect the battery from discharging in low voltage environments.

Conclusion

In conclusion, BQ296216DSGT is an advanced battery protection IC designed mainly for Li-ion batteries. It provides protection and safety features such as over-voltage, under-voltage, over-temperature and over-current protection. It also provides active balancing, cell balancing and under-voltage protection. With its improved reliability, accuracy and efficiency, BQ296216DSGT is an ideal choice for a variety of portable and wearable products.

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