MCHPMCP73831T-4ADI/MC

Overview

The MCP73831T-4ADI/MC is a compact single-cell Li-Ion/Li-Polymer charge management IC from Microchip. It is intended for simple, low-cost charger designs where the charge current is programmed externally and the charger regulates the battery to a 4.4 V termination voltage version. The device is a surface-mount solution for portable products that need straightforward battery charging from a limited supply voltage.

Why Choose This Part

This part is a straightforward charger IC for single-cell lithium batteries, so it is easy to integrate when you do not need a feature-heavy battery-management controller. The programmable charge current lets you size the charge rate to your cell, connector, and thermal limits. Its small surface-mount form factor and wide operating temperature range make it practical for compact embedded designs.

Applications

Getting Started

Designers typically pair the MCP73831 with a single-cell Li-Ion/Li-Poly battery, an input supply within the device's allowed range, and the external resistor network used to set charge current. Review Microchip's datasheet carefully for the correct current-programming resistor, status pin usage, and recommended input/output capacitor values. For evaluation and rapid prototyping, a Microchip development or evaluation board for the MCP73831 family can be helpful, but final validation should be done on your own charger and battery combination.

MCP7383 Family

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