BQ2085DBTR-V1P3G4

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
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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PMIC - Battery Management: BQ2085DBTR-V1P3G4 Application Field and Working PrinciplePower Management Integrated Circuit (PMIC) is an electronic device used to manage power-related components, such as batteries, motors, and power supplies, in an electronic system. In the field of battery management, PMIC is an important device for the protection, charging, and condition monitoring of the battery. Charge-management ICs provide highly intuitive and easy-to-use solutions for a wide range of cutting-edge systems such as wearables, handhelds, locomotives, and electric vehicles.One of the most popular battery management ICs is the BQ2085DBTR-V1P3G4, developed by Texas Instruments, Inc. This IC can manage both single-cell and 2- to 4-cell lithium-ion (Li-ion) battery packs, in addition to battery packs with other chemistries such as nickel metal hydride (NiMH), nickel cadmium (NiCd), and Lead-acid batteries. The BQ2085DBTR-V1P3G4 provides highly reliable protection, monitoring, and charging of a variety of battery chemistries.BQ2085DBTR-V1P3G4 features an advanced mixed signal hardware plus sophisticated firmware and embedded software detection algorithms. It is capable of monitoring cell voltages and temperatures, detecting cell faults (low resistance, leakage), detecting battery impedance, managing charger power, and controlling the system load. In addition, it can provide complete system safety protection, including overcharge, overdischarge, overvoltage, overcurrent, and overtemperature protections.The BQ2085DBTR-V1P3G4 has several primary functions, namely battery monitoring, battery protection, battery charging, and system control. Battery monitoring is done by monitoring the cells’ voltages and temperatures, with an accuracy of +/-26mV in voltage and +/-1 deg C in temperature. This monitor system is able to detect any fault in the battery, such as low resistance, leakage or overvoltage, and alert the user of potential problems. Battery protection is provided by features such as overcharge, overdischarge, overvoltage, and overcurrent protection. During charging, the charger voltage and current are controlled according to the battery type and capacity. The system control is done by controlling the load power, enabling system power-saving mode and turning off the battery when needed.The BQ2085DBTR-V1P3G4 is mostly used in consumer, automotive and industrial applications. In consumer applications, it can be used in portable consumer electronics such as drones and cameras to extend the battery life and protect the system from overvoltage, overcurrent, and overcharge. In automotive applications, it can be used to monitor and protect the battery in electric and hybrid vehicles. In industrial and telecom applications, it can be used in backup batteries, UPS, and telecom modules, providing reliable and secure data.In conclusion, the BQ2085DBTR-V1P3G4 is a powerful battery management IC with a host of features for the protection and charging of various battery chemistries. It provides highly reliable monitoring, protection, and charging features and can be used in a wide range of consumer, automotive and industrial applications.

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