BQ294624DRVT

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:	1
Fault Protection:	Over Voltage
Interface:	--
Operating Temperature:	-40°C ~ 110°C (TA)
Package / Case:	6-WFDFN Exposed Pad
Supplier Device Package:	6-WSON (2x2)

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Introduction

Power Management Integrated Circuits (PMICs) are specialized integrated circuits used in the control, monitoring and distribution of power in a variety of applications. Battery Management is a subset of PMICs that are specifically designed to address the needs of monitoring, charging and protecting multiple battery cells used in portable devices. The BQ294624DRVT PMIC is a single chip Battery Management solution developed by Texas Instruments and is used to monitor and protect multiple series-connected cells in either a single cell or multiple cell lithium-ion battery system.

Features

The BQ294624DRVT is designed to improve the performance and safety of lithium-ion batteries used in portable devices such as mobile phones, tablets, etc. It offers several features to protect the battery from damage, such as overcharge protection, over-discharge protection, cell balancing, and thermal shutoff. Additionally, the BQ294624DRVT is software programmable and offers both preventative and corrective protection for battery faults.

Application Fields

The BQ294624DRVT is designed for use in a wide variety of applications such as mobile phones, digital cameras, portable media players, camcorders, and other portable devices that use a combination of lithium-ion cell chemistries. It can also be used in multi-cell lithium-ion battery systems that require battery protection and monitoring. The combination of features offered by the BQ294624DRVT and its ability to monitor and protect multiple series-connected cells makes it an ideal solution for battery management applications that require both preventative and corrective protection.

Working Principle

The BQ294624DRVT monitors the voltage of each cell in the battery pack and compares it to the others. If any cell goes above or below the desired range, the device will take corrective action to prevent further damage. The device also implements a cell-balancing function that can prevent over-charging of individual cells and balance them out within the pack.The device also offers over-temperature protection. If the temperature of the system exceeds the desired range, the device will shut off power to the entire system until the temperature is safely below the specified range.The device is also programmable, allowing the user to set custom parameters or thresholds for different battery protection functions such as current over-flow, over-voltage, over-temperature, and other safety features.

Conclusion

The BQ294624DRVT is a single-chip battery management solution developed by Texas Instruments. It is designed for use in a wide variety of applications and offers several features such as overcharge protection, over-discharge protection, cell balancing and temperature protection. The combination of features offered by the BQ294624DRVT and its ability to monitor and protect multiple series-connected cells make it a great solution for portable devices and multi-cell lithium-ion battery systems that require both preventative and corrective protection.

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