MCP73831EV: Li-Ion Li-Pol, Battery Charger

Summary

Two evaluation boards are provided in the MCP73831 Evaluation Kit. The boards are set up to evaluate simple, stand-alone, linear charging of single cell Li-Ion / Li-Polymer battery packs (the battery packs are not included). Each board design provides constant current charging followed by constant voltage charging with automatic charge termination. In addition, the MCP73831-2AC board provides preconditioning of deeply depleted cells.

Each board design provides evaluation of the MCP73831 in two package options: a SOT23-5 and a 2 mm x 3 mm, 8-Lead DFN for higher power handling capability.

Programmable Fast Charge Current up to 500 mA
Preconditioning of deeply depleted cells (MCP73831-2AC)
No Preconditioning (MCP73831-2DC)
Automatic Charge Termination
Charge Current Monitor

Specifications

Manufacturer	Microchip Technology
Category	Power Management
Sub-Category	Battery Chargers
Eval Board Part Number	MCP73831EV-ND
Eval Board Supplier	Microchip Technology
Eval Board	Normally In Stock
Cell Type	Lithium Ion, Li-Ion Lithium Polymer, Li-Pol
Configuration	1 Cell
Voltage In	4.5 ~ 6 V
Voltage Out	4.2 V
Current Out	500 mA
Features	Auto Off Cell Preconditioning Cell Temperature Monitoring Reverse Polarity Protection Shutdown, Enable, Standby Status Indication Under Voltage Protection, Brown-Out
Quiescent Current [Typical]	510 µA
Sleep Mode Current [Typical]
Component Count + Extras	11 + 6 22 + 12
Application / Target Market	Audio: MP3 Players Battery Chargers Cell Phones Digital Cameras Portable Devices RF: BlueTooth Headsets USB Powered Devices
Design Author	Microchip Technology
Main I.C. Base Part	MCP73831
Quiescent Current [Maximum]	1.5 mA
Sleep Mode Current [Maximum]	50 µA
Date Created By Author
Date Added To Library	2011-03