BQ2040SN-D111TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Function:	Battery Monitor
Battery Chemistry:	Multi-Chemistry
Number of Cells:	--
Fault Protection:	Over Current, Over Temperature, Over/Under Voltage
Interface:	SMBus
Operating Temperature:	0°C ~ 70°C (TA)
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	BQ2040

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The BQ2040SN-D111TR is an integrated battery monitoring and control IC from Texas Instruments that offers improved battery management features such as cell balancing, overcharge and overdischarge protection, and over temperature protection. This chip is designed specifically for use in multiple cell applications, where the battery monitoring and control is essential for safe and efficient operation.The BQ2040SN-D111TR application field is wide and varied, ranging from computing and consumer electronics, to electric vehicles and medical applications. In these various applications, one of the main tasks performed by the BQ2040SN-D111TR is to monitor the state of charge of the battery cells. This information is then used to regulate the charge and discharge cycles of the cells and ensure that the application is running safely and efficiently.The BQ2040SN-D111TR has a maximum battery cell count of 16 and a maximum application current of 3A. It supports a wide range of chemistries, including Li-Ion, Li-Polymer, and NiMH, as well as selectable temperature range, charging current, and cell balancing parameters. It also includes an integrated ADC and SPI port for communicating with external devices.The working principle behind the BQ2040SN-D111TR is to measure the voltage of each cell and compare it with an internal reference voltage. This allows the chip to accurately monitor and control the state-of-charge of the cells. In addition, it monitors the temperature of the cells, allowing it to adjust the charging parameters accordingly; this ensures that the battery is always being charged safely and efficiently.The BQ2040SN-D111TR also features a variety of safety features. It has two different voltage thresholds that, when exceeded, will cause the charging cycle to be terminated and shifted to a discharge cycle. This will prevent the cells from becoming overcharged, which could cause irreparable damage to the cells, or worse. Additionally, there is an over discharge protection feature that will terminate the discharge cycle should the battery cell reach an unsafe voltage.In conclusion, the BQ2040SN-D111TR is a versatile and powerful integrated battery management IC from Texas Instruments. It offers a wide range of features, from monitoring and controlling the battery state-of-charge, to providing over-charge and over-discharge protection. This makes it an ideal solution for battery management in any application.

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