BQ294604DRVT

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Power management integrated circuits (PMICs) are complex electronic devices that are critical components in modern electronic systems. In particular, PMICs designed for battery management (BMs) are becoming increasingly important for applications such as automotive, consumer and medical devices. This article provides an overview of the BQ294604DRVT Battery Management Integrated Circuit (BMIC). Additionally, this article details the application field and working principle of the BQ294604DRVT.

Overview

The BQ294604DRVT is an advanced BMIC designed for the supervision and control of battery management systems. It provides integrated control, monitoring and diagnostics functions for one- to nine-cell Li-ion/ Li-ion polymer battery packs. The BQ294604DRVT offer a wide range of features including cell balancing, over-voltage and under-voltage protection, discharge current limitation and over-temperature protection.

The feature set of the BQ294604DRVT allows it to be used in a variety of applications such as automotive and consumer battery packs. In addition, the BQ294604DRVT is a cost-effective device that eliminates the need for multiple components, thereby allowing simplified design costing and reduced system complexity.

Application Field

The BQ294604DRVT is suitable for a range of applications including automotive, consumer and medical devices. Automotive applications include electric vehicle (EV) and hybrid electric vehicle (HEV) battery management systems, in which the BQ294604DRVT can provide the necessary control and monitoring functions for battery packs powering those vehicles.

In consumer and medical devices, the BQ294604DRVT can provide a range of features enabling the effective management of batteries powering those devices. Features such as over-voltage, under-voltage, discharge limitation and over-temperature protection allow the device to protect the battery and ensure its longevity. Additionally, the integrated cell balancing feature of the BQ294604DRVT allows cells within a battery pack to be balanced, ensuring improved performance and a longer life-span.

Working Principle

The working principle of the BQ294604DRVT is based on the integrated analog-to-digital conversions of the inputs from the battery cell voltage measurement pins and a thermistor. This enables the device to accurately detect input signals such as over-voltage, under-voltage, discharge current and over-temperature. Additionally, the integrated cell balancing feature ensures that the BQ294604DRVT can balance cells within a battery pack.

When an over-voltage, under-voltage, discharge current or over-temperature condition is detected, the BQ294604DRVT will respond by issuing an interrupt signal as appropriate. This interrupt signal can be used by the system to take action and protect the battery pack. The BQ294604DRVT also provides other useful features such as battery pack voltage measurement, cell balancing, and fault logging.

Conclusion

The BQ294604DRVT BMIC is designed for the supervision and control of battery management systems. This device is suitable for automotive, consumer and medical device applications and can provide integrated control and monitoring functions for battery packs powering those applications. The BQ294604DRVT offers a range of features such as cell balancing, over-voltage and under-voltage protection, discharge current limitation and over-temperature protection. Additionally, the working principle of the BQ294604DRVT is based on the analog-to-digital conversion of signals from the battery cells and a thermistor.

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