MCP73832-2ATI/MC

Series:	--
Packaging:	Tube
Part Status:	Active
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Current
Fault Protection:	Over Voltage
Charge Current - Max:	500mA
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	6V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	8-VFDFN Exposed Pad
Supplier Device Package:	8-DFN (2x3)
Base Part Number:	MCP73832

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Introduction to MCP73832-2ATI/MC Battery Charger

MCP73832-2ATI/MC is a low-power CMOS battery management system designed for Universal Serial Bus (USB) and lithium-ion/polymer battery applications. This battery charger integrates a voltage converter, current sensor, voltage detection, programmable timer, and automatic cell balancing IC, offering great flexibility and accuracy for a wide range of batteries. It is an ideal solution for a variety of applications such as medical, automotive, consumer, industrial, and more.

Battery Charger Overview

The MCP73832-2ATI/MC is based on a Digital Analog Converter (DAC) architecture that allows for programmable voltage, current and time parameters. This allows for fast and accurate parameter setting and charge termination, supported by minimum power consumption. It supports a wide range of input voltages of 4.5V to 28V and output voltages of 4.5V to 18V. It has a wide range of application temperature capabilities from -20°C to +85°C. The battery charger supports Lithium Ion/Polymer batteries with a full charge voltage up to 4.2V and a no load headroom for trickle charge, self-discharge, or cell balancing. It can be used in charging solutions for single-cell, two-cell and three-cell batteries. It has short circuit protection, which is especially important for battery charging applications.

Automatic Cell Balancing

One of the most attractive features of this battery charger is its integration of an automatic cell balancing IC. This feature can help to extend the battery life and ensure performance over time.The automatic cell balancing feature helps to reduce the total voltage of each cell in the battery while avoiding overcharging the battery. It helps to eliminate the "memory effect" that can occur in some battery applications by balancing out any differences between cell voltages. This can help to reduce stress on the battery, minimizing voltage sag and increasing the battery\'s performance and life.

Working Principle

The MCP73832-2ATI/MC has two working modes: constant voltage (CV) charging and constant current (CC) charging. In constant voltage charging mode, the charger provides a high constant voltage output to the battery up to the full charge voltage. In constant current charging mode, the charger maintains a constant current output to the battery until the full charge voltage is reached. The charger can be programmed to automatically switch from CV charging to CC charging once the full charge voltage is reached.The charger also provides a safety timer feature, allowing the user to set a maximum charging time before the charger automatically terminates the charging process, even if the full charge voltage has not been reached. The timer can be programmed to have a duration of up to 8 hours.

Conclusion

The MCP73832-2ATI/MC battery charger is an ideal solution for a wide variety of applications due to its high power efficiency, small size, ease of use, and accuracy. It is well suited for medical, automotive, consumer, industrial, and other high power applications. Its integrated automatic cell balancing IC helps to extend battery life and ensure performance over time. The battery charger provides two charging modes; constant voltage and constant current, to ensure fast and accurate charge termination. The charger also provides a safety timer feature, allowing the user to set a maximum charging time before the charger automatically terminates the charging process.

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