BQ2084RTTR-V140G4

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PMIC - Battery Management includes a broad range of responsive products to enable power delivery and battery management for a variety of electronic applications.

BQ2084RTTR-V140G4 is a highly integrated front end integrated circuit (IC) for use in battery-operated applications. It integrates protective and monitoring functions for battery packs for industrial, automotive, medical, and consumer applications.

Application Field

BQ2084RTTR-V140G4 is designed to protect Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Polymer), Nickel-Metal Hydride, and other battery chemistries. With its multicell architecture, BQ2084RTTR-V140G4 can be used in high-capacity multi-cell battery packs by providing overcharge and overdischarge protection, reduced cell imbalance, cell temperature monitoring, and cell balancing.

The popular applications of BQ2084RTTR-V140G4 include laptop batteries, digital cameras, cellular phones, electronic vehicles, electric bicycles, and many other applications.

Working Principle

BQ2084RTTR-V140G4 is a multicell front-end integrated circuit that can support up to 12 cells in series for a wide range of battery chemistries. The device includes a number of protective features for optimal battery performance. For starters, BQ2084RTTR-V140G4 monitors the battery\'s overcharge and overdischarge voltage, providing both over current and under current protection.

Another protection feature is its ability to monitor the battery\'s temperature. If the battery\'s temperature falls below a pre-set threshold, BQ2084RTTR-V140G4 will reduce the charge current and/or terminate the charging process as necessary. Additionally, BQ2084RTTR-V140G4 can alert the user of the battery\'s temperature rise above a given limit.

BQ2084RTTR-V140G4 also has a balancing feature that ensures that each cell in a multi-cell battery is held to the same voltage. This feature prevents cell imbalances from developing over long-term use or from environmental factors like high temperatures.

Moreover, BQ2084RTTR-V140G4 supports programmable charge and discharge currents, allowing designers to select the optimal level for their battery application. The device includes an 8-bit reporting feature which can be used to communicate the status of the battery\'s health to other systems.

Conclusion

In conclusion, BQ2084RTTR-V140G4 is a much-needed device for higher capacity battery packs found in many consumer, industrial, automotive and medical applications. The device integrates a suite of protective and monitoring features, allowing designers to select the optimal charging parameters for their battery packs.

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