BQ294682DRVT

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:	1
Fault Protection:	Over Voltage
Interface:	--
Operating Temperature:	-40°C ~ 110°C (TA)
Package / Case:	6-WDFN Exposed Pad
Supplier Device Package:	6-SON (2x2)
Base Part Number:	BQ294682

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Introduction

PMIC, also known as Power Management Integrated Circuit (PMIC), provides semiconductor power management functions and related features. It is used to regulate and monitor the power used in digital equipment. The Battery Management PMIC is an important type of PMIC. It includes a large number of devices that have been specially designed to manage and control the operation of batteries. This paper will focus on one of these devices, the BQ294682DRVT, an integrated power management IC that combines the charging, monitoring, and protection of Li-ion and Li-polymer batteries in one small package.

Application Fields

The BQ294682DRVT PMIC integrates all of the required elements for effectively managing and protecting Li-ion and Li-polymer batteries. It is most commonly used in portable electronic devices, including mobile phones, smart watches, tablets, laptops, and other consumer products. It is designed to optimize the life of Li-ion cells and other power sources, such as lead acid batteries.

High Precision Voltage Measurement and Charge Control

The BQ294682DRVT integrates two ADC channels that are used to measure and monitor the battery voltage accurately. The maximum linearity error is 0.8% while sampling current is less than 10mA. The embedded temperature sensor also enables precise voltage and charge control, resulting in a more predictable and safer operation. The device features a programmable charge current ranging from 50mA to 2A. It also features a programmable input voltage limit that ensures the voltage remains within the specified safe range during charge and discharge.

Integrated Current Monitor and Battery Protection Circuit

The device includes an integrated current monitor circuit and a battery protection circuit. The current monitor circuit is used to monitor the battery current to ensure that only the specified amount of charge current is delivered to the battery. The battery protection circuit helps to protect the battery from overcharging, over-discharging, and other forms of abuse. It also protects the device from damage by venting excess current and heat during abnormal operation and prevents the reverse charging of the battery.

Flexible Configuration and Advanced Features

The BQ294682DRVT PMIC also features a wide range of configuration options that enable the user to tailor the device to their specific application. It is compatible with a variety of charging sources and terminals, and the user can select the maximum charge voltage and current limit.The device also includes an advanced set of features that enable it to achieve maximum performance and reliability. These features include high-efficiency charge regulation, programmable charge timers, automatic discharge cut-off, and self-resetting fault conditions.

Conclusion

The BQ294682DRVT PMIC is an integrated power management IC that combines the charging, monitoring, and protection of Li-ion and Li-polymer batteries. The device is most commonly used in mobile phones, smart watches, tablets, laptops, and other consumer products. Its integrated current monitor and battery protection circuit help to ensure a safe and consistent operation. The device\'s wide range of configuration options, coupled with its advanced features, make it an ideal choice for battery management applications.

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