BQ2085DBTR-V1P2G4

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Function:	Battery Monitor
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	--
Fault Protection:	--
Interface:	SMBus
Operating Temperature:	-20°C ~ 85°C (TA)
Package / Case:	38-TFSOP (0.173", 4.40mm Width)
Supplier Device Package:	38-TSSOP
Base Part Number:	BQ2085

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Introduction

The BQ2085DBTR-V1P2G4 is an integrated power management IC (PMIC) from Texas Instruments. It combines a battery charger and battery fuel gauge in a single device, providing an ideal solution for battery-powered applications. This PMIC is ideal for applications such as portable medical instrumentation, patient monitoring systems, and multitasking handheld devices. The device is designed to optimize battery life and improve system reliability. In this article, we will discuss the BQ2085DBTR-V1P2G4\'s application field and working principle.

Application Field

The BQ2085DBTR-V1P2G4 PMIC is designed to facilitate battery management in a wide range of applications. It offers a high level of integration, providing seamless support for charging and monitoring LiIon, LiFePO4, NiCd, NiMH, and NiZn battery chemistries. This integrated PMIC makes it easy to design power management systems for more accurate control and greater energy efficiency. The BQ2085DBTR-V1P2G4 is optimally suited for use in portable medical instrumentation, patient monitoring systems, multitasking handheld devices, and other applications. It satisfies the space- and weight-constrained requirements of such systems by integrating a high-efficiency battery charger and fuel gauge in a single package. The high integration of the device helps ensure accurate, reliable battery management with minimal interference to system performance.

Working Principle

The BQ2085DBTR-V1P2G4 PMIC manages the energy flow between a battery and load using a sophisticated set of algorithms. The device constantly monitors the current flowing from the battery to the load, and adjusts the input/output characteristics of the load devices accordingly. Depending on the system conditions, the PMIC can be programmed to provide power in either a linear or switch-mode configuration. The BQ2085DBTR-V1P2G4 also features an embedded control algorithm which is used to regulate the battery charge/discharge current.The BQ2085DBTR-V1P2G4 also incorporates a battery fuel gauge, which constantly monitors the cell voltage, temperature and charge/discharge current. This information is used to accurately predict the remaining battery capacity, and can be used to provide alerts when the battery level is low. The device also offers support for cell balancing and other advanced battery management functions.

Conclusion

The BQ2085DBTR-V1P2G4 PMIC from Texas Instruments is a highly integrated power management IC which combines a battery charger and battery fuel gauge into a single device. It is optimally suited for applications such as portable medical instrumentation, patient monitoring systems, and multitasking handheld devices, where space and weight are critical considerations. The BQ2085DBTR-V1P2G4 uses sophisticated algorithms to manage the energy flow between the battery and load, and also features an advanced battery fuel gauge for accurate remaining capacity predictions.

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