BQ27500DRZT-V100

Series:	Impedance Track™
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Function:	Battery Monitor
Battery Chemistry:	Lithium-Ion
Number of Cells:	1
Fault Protection:	Over Temperature
Interface:	I²C
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	12-VFDFN Exposed Pad
Supplier Device Package:	12-SON (2.5x4)
Base Part Number:	BQ27500

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Introduction

Battery Management is a critical field in Power Management ICs (PMICs) and requires specialized products to achieve its performance goals. The BQ27500DRZT-V100 Power Management IC (PMIC), is part of the TI family of Battery Management ICs (BQ). It allows for a complete, integrated approach to managing, sustaining, and monitoring the power needs of advanced battery-powered applications ranging from industrial to medical. The features of this IC make it suited for use in a wide variety of applications including portable medical devices, digital still cameras, smart phones and tablets, and intelligent control systems.

Applications

The BQ27500DRZT-V100 PMIC can be used in a variety of applications such as portable devices, smart phones, and digital cameras. It is designed to reduce overall power consumption and improve the overall battery life performance of such devices in both full charge and charge depleted conditions. The BQ27500DRZT-V100 can be used in medical applications where extended battery life and improved safety are of utmost importance. With its low quiescent current, integrated voltage clamps, and active cell balancing, the BQ27500DRZT-V100 can provide a reliable and safe operation.

Features

The BQ27500DRZT-V100 is a multi-cell, multi-chemistry battery management system with cell balancing, temperature monitoring, and advanced safety features all integrated into one monolithic package. It is also compatible with a variety of different battery types including Li-Ion, Li-Poly, NiMH, and NiCd.The BQ27500DRZT-V100 provides a wide range of features and functions that enable it to perform important functions including the following:• Cell balancing - The integrated cell balancing circuit helps to ensure a longer battery life and efficient energy utilization by ensuring each cell is charged equally.• Battery status monitoring - The chip monitors the other battery parameters including voltage, temperature, and current and is able to easily assess the battery health.• Advanced safety features - The integrated safety features help to prevent any potential issues that may occur. These include over-voltage protection, temperature monitoring and over-charge protection.• UART/SPI Interface - The UART/SPI interface enables easy communication with a central controller, and the communication protocol provides a variety of data formats for data exchange.

Working Principle

The BQ27500DRZT-V100 PMIC works on the principle of cell balancing and monitoring, wherein each cell voltage is monitored and balanced automatically. This ensures an even charge among all the cells, preventing any overcharging of any of the cells.Moreover, the BQ27500DRZT-V100 is also capable of monitoring the other battery parameters like temperature, current, and voltage. This helps to easily assess the battery health, allowing for better protection, power optimization and improved safety for the device.The integrated safety mechanisms of the BQ27500DRZT-V100 provide protection against over-current and over-voltage conditions, thereby preventing any potential damage to the battery and device. In addition, the UART/SPI interface communicates with a central controller to exchange battery data, and the communication protocol provides a variety of data formats to facilitate easy communication.

Conclusion

The BQ27500DRZT-V100 is a highly versatile and intelligent battery management system which offers complete and integrated control over the power needs of many advanced battery-powered systems. The features and functions of this PMIC make it ideal for a wide range of applications including portable medical devices, digital still cameras, smart phones and tablets, and intelligent control systems. The chip provides both cell balancing and monitoring features which is necessary to effectively manage and sustain power levels in devices relying on batteries, as well as safety features to prevent any damage caused by over-voltage and over-current conditions. The UART/SPI interface enables easy communication between the chip and the central controller for exchanging battery data in a variety of formats.

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