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MCP73871-2CCI/ML

MCHPMCP73871-2CCI/ML

Microchip Technology
Charger IC Lithium Ion/Polymer 20-QFN (4x4)
Active4,988 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The Microchip MCP73871-2CCI/ML is a highly integrated Li-Ion/Li-Polymer battery charge management controller with integrated system load sharing. It is designed for applications powered from a USB port or AC adapter, offering programmable constant current charging up to 1.1A for a single-cell battery with a 4.2V battery pack voltage. This device includes fault protection for over-temperature conditions.

Why Choose This Part

This charger IC offers integrated system load sharing, allowing the device to power the system while simultaneously charging the battery. Its programmable constant current charging up to 1.1A and 4.2V battery pack voltage support common single-cell Li-Ion/Li-Polymer battery configurations. Over-temperature fault protection enhances reliability in diverse operating conditions.

Applications

Portable USB-Powered Devices
Ideal for portable electronics that derive power from a USB source and require simultaneous charging and system operation.
Handheld Instruments
Suitable for battery-powered handheld instruments needing efficient power management and over-temperature protection.
Wireless Sensors and Modules
Manages charging for single-cell Li-Ion/Li-Polymer batteries in wireless sensor nodes or modules that may have intermittent power sources.
Medical Devices
Can be used in certain portable medical devices where precise battery charging and system load management are critical.
Power Bank Solutions
Provides charge management for small power bank applications that charge from USB and supply power to a load.

Key Specifications

Interface USB
Mounting Type Surface Mount
Package / Case 20-VFQFN Exposed Pad
Number of Cells 1
Fault Protection Over Temperature
Battery Chemistry Lithium Ion/Polymer
Current - Charging Constant - Programmable
Battery Pack Voltage 4.2V
Charge Current - Max 1.1A
Operating Temperature -40degC ~ 85degC (TA)
Programmable Features Timer
Voltage - Supply (Max) 6V
Supplier Device Package 20-QFN (4x4)

Getting Started

To get started with the MCP73871-2CCI/ML, integrate it into a custom PCB design, paying attention to the datasheet recommendations for layout and component selection. The device requires external components for setting charge current and input current limits. Utilize Microchip's development tools or third-party evaluation boards for similar battery charge management ICs as a reference for prototyping.

MCP7387 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Battery Pack Voltage Stock
MCP73871-2CCI/ML (this part) 4.2V 4,988
MCP73871T-4CAI/ML 4.4V 3,090
MCP73871T-1CCI/ML 4.1V 3,530
Also available as: MCP73871T-2CAI/ML, MCP73871-4CAI/ML, MCP73871-4CCI/ML, MCP73871

Also Consider

MCP73831T-2ACI/OT MCHPMicrochip Technology - This is a simpler, standalone linear Li-Ion battery charger if system load sharing is not required.
BQ24074RGTR TITexas Instruments - This alternative offers similar integrated power-path management and charge capabilities from Texas Instruments.
LTC4054ES5-4.2#TRMPBF ADIAnalog Devices Inc. - This is a basic linear Li-Ion charger, suitable for designs with less complex power management needs and smaller footprint.
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