BQ27510DRZT

Series:	Impedance Track™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Battery Monitor
Battery Chemistry:	Lithium-Ion
Number of Cells:	1
Fault Protection:	--
Interface:	I²C
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	12-VFDFN Exposed Pad
Supplier Device Package:	12-SON (2.5x4)
Base Part Number:	BQ27510

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Introduction

Battery Management Integrated Solutions, abbreviated as PMIC, is a system-level solution developed to minimize the design complexity of battery management while maximizing performance and system integration. The BQ27510DRZT is a fully integrated battery management device integrated in PMIC. It includes a dedicated fuel gauge to accurately monitor the energy reserves in a battery cell, providing an integrated solution for providing power to portable medical and industrial equipment.

Application Field

The BQ27510DRZT is suitable for batteries with a wide range of voltages, from 2 cell 4.2V Lithium Ion with its impressive accuracy (±1.25%), to 4 cell 16.8V NiCD/NiMH with its average current discharge rate of ±2%. This is due to the high output voltage from the BQ27510DRZT. The device is highly sensitive and capable of detecting even minute changes in the battery cell. This allows for enhanced safety and extremely accurate monitoring and control of the battery. The BQ27510DRZT offers exceptional system flexibility, allowing the user to tailor the battery management solution to their specific application. It offers a wide range of features, such as per-cell monitoring, temperature compensation, self-discharge management, active-cell balancing, and optimal charging algorithm to provide the best performance and longest battery life. Additionally, it offers a range of adaptable cell configuration options, such as balancing a 3-cell string or a parallel/series combination. This allows the user to customize the design to their application, and offers a more comprehensive system-level solution. The variety of features, in addition to its versatility, makes the BQ27510DRZT suitable for a wide range of applications including portable medical and industrial equipment, automotive and navigation systems, wearable devices, cell phones, etc.

Working Principle

The BQ27510DRZT has a dedicated fuel-gauge that accurately measures the remaining energy level in a single or multi-cell battery cell. The device uses a variety of parameters, such as battery temperature and voltage, to determine the remaining capacity of the battery. Additionally, it uses sophisticated algorithms to monitor the discharge rate of the battery and ensure that the battery is managed efficiently. For example, if the device detects a low charge level, it will reduce the charging current to prevent overcharging, thus extending the life of the battery. The device also incorporates a range of features to protect the battery, including self-discharge management and active cell balancing. Self-discharge management ensures that the battery is not discharged to a low level, while active cell balancing ensures that all cells in a battery cell are balanced during charging and discharging. This improves the performance and life of the battery by protecting it from overcharging and over-discharging.

Conclusion

The BQ27510DRZT is an integrated battery management device designed for a variety of applications, from portable medical and industrial equipment to automotive and navigation systems. It incorporates a range of features for accurate and efficient monitoring and control of the battery, including per-cell monitoring, temperature compensation, active cell balancing and optimal charging algorithms. Additionally, the device is highly sensitive and capable of detecting even minute changes in the battery, ensuring enhanced safety and accurate monitoring. This makes the BQ27510DRZT suitable for a wide range of applications, allowing the user to tailor the device to their specific application and offering a comprehensive system-level solution.

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