Introduction

The market for handheld devices is continuously expanding, presenting numerous challenges related to the integration of various functionalities. Managing battery power can initially pose significant risks. Therefore, this document outlines all the critical considerations when powering a Microprocessor Unit (MPU) with a simple lithium-ion battery using a Power Management Integrated Circuit (PMIC). This document will cover applications ranging from the least complex to the most complex, outlining the trade-offs associated with each.

The main topics include:

• MCP73830—Battery Charge Management Controller + MCP16501/2 PMICs + Generic MPU
• MCP73833/4—Battery Charge Management Controller + MCP16501/2 PMICs + Generic MPU
• MCP73871—Battery Charge Management Controller + MCP16501/2 PMICs + Generic MPU

This application note provides developers with the following content:

• Recommended block diagrams with associated functional descriptions
• A description of the Battery Charge Management Controllers and their use with Microchip PMICs and MPUs, including the trade-offs associated with each design
• A detailed example of a typical application using MCP16501 and SAMA5D2