BQ77910ADBT

Series:	--
Packaging:	Tube
Part Status:	Not For New Designs
Function:	Multi-Function Controller
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	4 ~ 10
Fault Protection:	Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Interface:	I²C
Operating Temperature:	-25°C ~ 85°C (TA)
Package / Case:	38-TFSOP (0.173", 4.40mm Width)
Supplier Device Package:	38-TSSOP
Base Part Number:	BQ77910

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BQ77910ADBT Application Field and Working Principle

Battery Management System (BMS) is a key component in the development of portable products and embedded storage solutions, as it is responsible for managing a variety of batteries for many applications.Texas Instruments’ BQ77910ADBT directly supports multicell lithium-ion, nickel-based, and lead-acid battery chemistries, and is designed to address the needs of a battery management system. This article will discuss the application field of the BQ77910ADBT and examine its working principle.

Application Field of the BQ77910ADBT

The BQ77910ADBT is suitable for a variety of applications and industries, ranging from automotive and industrial to consumer. For automotive applications, the BQ77910ADBT can be used to manage the battery system for the car’s starter, auxiliary, and glass breakage lamps. The device is also applicable for monitoring systems and systems for balancing the utilization of power from different energy sources to maximize efficiency. In the industrial sector, the BQ77910ADBT can be deployed in applications where it monitors and manages the processes that require storing and using energy. One such application is the forklift truck, where the device can provide robust battery protection as well as cell balancing services and protection against charge imbalance and over-temperature conditions.The BQ77910ADBT can also be used in consumer applications such as mobile phones, battery-powered handheld devices, and laptop computers. Due to its low standby current, high accuracy, and fast charging capabilities, the BQ77910ADBT is well suited for managing the batteries in these applications.

Working Principle of the BQ77910ADBT

The BQ77910ADBT operates off of two principal components: the battery and the host microcontroller. The battery is connected to the microcontroller through a bidirectional link, which allows for data exchange between the two components. The BQ77910ADBT uses the host microcontroller to allocate a unique identifier for each cell in the battery system. This unique identifier serves as the basis for the device\'s battery management system. The BQ77910ADBT employs two primary battery management functions: monitoring and protection. For monitoring, the device uses the unique identifier allocated to each cell to monitor the battery’s charge level, temperature, and current. The BQ77910ADBT will then send this data to the host microcontroller to be used as a reference when managing the battery system. For protection, the BQ77910ADBT actively monitors the battery system to identify any anomalies, such as a current surge. If an anomaly is detected, the BQ77910ADBT will shut off the system to prevent damage to the battery.

Conclusion

The BQ77910ADBT is a versatile device suitable for a variety of applications and industries. The device utilizes a unique identifier to monitor and protect a battery system, providing seamless integration with a host microcontroller. The BQ77910ADBT is an ideal solution for applications that require robust battery management.

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