BQ296106DSGT

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Function:	Battery Protection
Battery Chemistry:	Lithium-Ion
Number of Cells:	2 ~ 4
Fault Protection:	Over Voltage
Interface:	--
Operating Temperature:	-40°C ~ 110°C (TA)
Package / Case:	8-WFDFN Exposed Pad
Supplier Device Package:	8-WSON (2x2)

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PMIC, the acronym of power management integrated circuit, is the technology and industry used to optimize and control power delivery in advanced and modern semiconductors. Battery management, a type of PMIC, is an important part of efficient device power management. Battery management evaluates battery performance, monitors potential and temperature, and quite importantly, manages over-current and over-voltage detection of a device. BQ296106DSGT, a battery management integrated circuit produced and sold by Texas Instruments, is a semiconductor device utilized in battery management applications. This document provides an overview of the BQ296106DSGT, the application field and the working principle behind it. The BQ296106DSGT is a highly integrated, low power device designed for usage in handheld, portable and battery-powered applications. Its core functions include monitoring the charge and discharge of a battery by measuring its internal and external temperature, supplying over-voltage protection, diagnosing the state of the battery, and providing monolithic switches for contactors. Additionally, the circuit also incorporates charging characteristics to optimize the power transfer from the charger to the battery, protecting the battery from overcharging. Specifically, the BQ296106DSGT has a wide voltage input range of 2.7V to 4.5V and three output channels, allowing the use of three distinct lithium batteries. Furthermore, the device is capable of monitoring the temperature of the external environment, detecting sources of heat dissipation in a system behind a battery, and alerting the user if the battery runs too hot. This feature provides a greater degree of safety and ensures that the battery is not overstressed or damaged. The device supplies different functions and software support to meet varying needs in battery management applications. It utilizes a built-in 6-bit A/D converter, a built-in RISC CPU, and other specialized registers, allowing users to program their desired sequences and status information. An external EEPROM is enabled to store calibrated design data, eliminating the need for any computing platform for data logging or reconfiguration. It is encapsulated in the 48-pin thin-shrink small-outline (TSSOP), minimizing power consumption, and two separate pins for the gate and source are included for flexibility in configuration. With 12-bit resolution and voltage accuracy ±10 mV, the BQ296106DSGT consumes very low quiescent current in active mode (less than 2 μA) and a very low off-mode current (less than 0.1 μA).Perhaps the most important function of the BQ296106DSGT is its built-in protection feature, which eliminates the need to add a regulator or switch when connecting the battery to a load. The device is designed to keep battery condition at an optimal level, protecting the battery against over-charging and over-discharging by cutting off the connection to the load when the over-voltage/under-voltage thresholds are exceeded. It monitors the voltage and current of the battery, allowing the circuit to identify current drain faults, over-temperature, and even over-voltage.The working principle of the BQ296106DSGT circuit is simple: its main role is to detect voltage and current changes in the battery and then switch the load supply accordingly. By receiving input data of ambient temperature, battery voltage, and current from the system, the circuit will process that data and adjust settings accordingly. An internal comparator monitors the threshold values and, when it’s exceeded, can notify the system by a logic signal.In summary, the BQ296106DSGT is a comprehensive and cost-effective battery management integrated circuit which can be utilized to optimize the battery performance and power efficiency in battery-powered applications. With its wide voltage range, low-power consumption, and a built-in protection feature, it is a very useful and reliable device for any battery management system.

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