BQ2084DBT-V143

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PMIC - Battery Management is a field of study that is concerned with the integration of power management integrated circuits (PMICs) and battery control into a single board of standard electronics. Typically, a PMIC will include features to control DC/DC converters, voltage monitoring, current monitoring, charging, and power management. Battery management is the integration of these features into one integrated unit. The BQ2084DBT-V143 is a classic example of how these two technologies can be effectively combined for advanced power management.

The BQ2084DBT-V143 is an intelligent yet practical Power Management IC (PMIC) from Texas Instruments. It has been designed to offer complete power system management for a range of applications, from consumer to automotive. The device has been designed with an integrated Li-Ion battery charger and a Li-Po battery monitor. The device also integrates multiple power switches, an on-chip charge pump, and a low voltage detector, allowing for a high degree of flexibility and control within an integrated package.

The BQ2084DBT-V143 features three primary components: Battery Management, Power Switches, and Voltage Monitoring. The BQ2084DBT-V143’s battery management system provides very efficient charging of a Li-Ion or Li-Poly cell, with up to 6.5V input voltage and up to 4.3V programmable end-of-charge voltage. The system monitors the battery during charging, and provides overcharge and overdischarge protection to ensure safe operation. The BQ2084DBT-V143 also includes dual low voltage detector, one active low and one active high, allowing for both over- and under-voltage detection with an adjustable trip point.

The Power Switches feature integrated NFETs and PFETs, providing up to 5A output current for loads ranging from small consumer devices to automotive applications. The device is controlled by a logic pin, enabling the output to be switched on and off as needed. Additionally, the device includes an integrated charge pump that enables the use of load capacitances up to 30µF with a 3V or 5V input supply. The integrated monitor pin is also capable of measuring the output current when the power switch is in the off configuration, allowing for more accurate current tracking.

The Voltage Monitoring feature of the BQ2084DBT-V143 allows for up to 5V of input, 1.25V precision programmable voltage monitoring. The device can detect voltage levels on the input, as well as detect over- and under-voltage levels. This ensures that supply voltages remain within expected limits, protecting any attached components from over- or under-voltage damage. The device is also capable of measuring the input current, allowing for more accurate power tracking.

In conclusion, the BQ2084DBT-V143 output provides a reliable and efficient Battery Management, Power Switching, and Voltage Monitoring solution in one package, making it an ideal solution for a variety of applications. The device combines highly efficient charging of a Li-Ion or Li-Poly cell, over and under voltage protection, a charge pump, and low voltage detection, providing a robust, integrated solution for PMICs. With its wide range of features, the BQ2084DBT-V143 has become an important solution for a range of applications.

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