BQ20Z75DBT

Series:	Impedance Track™
Packaging:	Tube
Part Status:	Discontinued at Digi-Key
Function:	Multi-Function Controller
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	2 ~ 4
Fault Protection:	Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Interface:	SMBus
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	38-TFSOP (0.173", 4.40mm Width)
Supplier Device Package:	38-TSSOP
Base Part Number:	BQ20Z75

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Introduction

PMIC (Power Management Integrated Circuit) – Battery Management is an important technology or sub-system for charging, discharging, and overcharging that is used within electronic equipment and other portable devices. It is commonly used in many electronic and embedded applications, such as mobile phones, tablet PCs, gaming consoles and more. The BQ20z75DBT is a battery-management IC designed to optimize batteries for better charging, power-drain protection, and longer battery life. This device acts as the interface between the battery pack and the system, allowing for accurate readings of the battery’s state. It also serves as a safety switch, monitoring the battery to protect the system from overcharging or excessive drain.

Application Field of BQ20Z75DBT

The BQ20z75DBT is a highly advanced and feature packed battery management IC. The core functions of the chip are voltage and current monitoring, cell temperature control, and charger management. All of these features are put together to allow for maximum efficiency in the protection and power management of the battery pack. This battery management IC is specifically designed for Li-Ion rechargeable batteries and is known to be used in many of its applications.The BQ20z75DBT is a feature-packed battery provider management IC, offering:• Overvoltage protection• Balance current sensing• Cell-voltage sensing• Pre-charge and Overdischarge protection• Overcurrent protection• Charger management• Voltage and current monitoringThe application fields of BQ20z75DBT are:• Tablet PCs• Phone charging• MP3 players• Laptop computers• Digital cameras• Portable gaming systems• Wearable electronic device

Working Principle of BQ20Z75DBT

The BQ20Z75DBT operates on Li-Ion rechargeable batteries and provides a range of protections and cell monitoring capabilities. This IC works by monitoring the cell voltages and providing appropriate safety threshold values to protect against overvoltage and overcurrent conditions.The BQ20Z75DBT also performs cell voltage and temperature sensing, allowing the IC to turn off charging and discharging functions when an unsafe cell voltage or temperature are reached. In addition, this IC includes over-charge protection and balance charging to maintain optimal life and performance of the battery.The BQ20Z75DBT is notable for its low current consumption, which is ideal for many battery applications, since it requires less overhead for monitoring power.

Conclusion

The BQ20Z75DBT is a powerful battery-management IC and is a great choice for many Li-Ion rechargeable batteries. Its features and functions, such as overvoltage protection, cell voltage sensing, balance charging, and more, allows the IC to provide maximum efficiency and protection for the battery pack. The BQ20Z75DBT is designed for multiple applications and offers a wide range of features to maximize the life and performance of the battery.

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