XC6801A421PR-G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant
Programmable Features:	--
Fault Protection:	Over Temperature
Charge Current - Max:	500mA
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	6V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	SOT-89-5/6
Supplier Device Package:	SOT-89-5
Base Part Number:	XC6801

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Introduction:The XC6801A421PR-G, manufactured by Xcel Energy, is a power management integrated circuit (PMIC) designed for battery charging applications. It is an intelligent, low-power device capable of charging multiple cell lithium-ion batteries, from AAA to large format cells, at up to 4.2A. The unit is a highly integrated PMIC board with a variety of features and functions, including multiple charge algorithms, a low voltage detector and an adjustable voltage controller. This PMIC is a high efficiency, high reliability, energy-efficient device for use in a wide range of applications.Design Architecture:The XC6801A421PR-G utilizes a linear charge architecture which is designed to optimize battery charging and performance. The XC6801A421PR-G consists of a controller, a field effect transistor (FET), and a voltage detector, all in one package. The controller is responsible for general management of the battery charging process, including monitoring the battery’s charge level and regulating its charging. The FET is used to regulate the current and voltage of the battery, and the voltage detector gives the user on-board feedback of the battery’s voltage. By utilizing this three-part architecture, the XC6801A421PR-G can effectively and efficiently charge a wide range of battery types, from AAA to large format cells.Charging Algorithm:The XC6801A421PR-G supports numerous charging algorithms, including Constant Voltage (CV), Constant Current (CC) and Constant Power (CP). The charge algorithms are designed with safety in mind and are designed to protect the battery from damage or overcharging. The Constant Voltage algorithm is designed to provide a constant voltage charge at a user-defined setting, while the Constant Current algorithm is designed to provide a constant current charge at a user-defined setting. The Constant Power algorithm is designed to provide an optimal power level and voltage settings to maximize battery life.Low Voltage Detector:The XC6801A421PR-G utilizes a low voltage detector which is designed to detect when the battery voltage drops below a user-defined threshold. When the battery’s voltage drops below the threshold, the detector will trigger the controller to begin charging the battery. This feature increases the accuracy of the charge cycle and allows the user to more efficiently manage the battery’s charge level.Adjustable Voltage Controller:The XC6801A421PR-G is capable of adjusting the voltage of the battery. The adjustable voltage controller allows the user to adjust the battery charge voltage, increasing or decreasing its output. This feature increases the user’s control over the battery charging process, allowing them to tailor the voltage output to the battery type being charged.Conclusion:The XC6801A421PR-G is a PMIC that is designed for battery charging applications. It is an intelligent, low-power device capable of charging multiple cell lithium-ion batteries, from AAA to large format cells, at up to 4.2A. The unit is a highly integrated PMIC board with a variety of features and functions, including multiple charge algorithms, a low voltage detector and an adjustable voltage controller. This PMIC is a high efficiency, high reliability, energy-efficient device for use in a wide range of applications.

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