MCP7383XRD-PPM (#2): 1A, Li-Ion Single Cell

Summary

There are two independent circuits on the reference design. First circuit is designed with MCP73832, which allows maximum programmable fast charge current up to 500 mA. The second circuit is designed with MCP73833, which allows maximum programmable fast charge current up to 1A and has a power good indicator and an additional status output. Two preset values of fast charge current are available for each circuit by a SPDT dip on the board for users to experience different speed.

Both circuits come with load sharing system power path management feature. This feature allows a DC Power Source to support system load while charging a Li-Ion battery. When the DC Power Source is absent, the Li-Ion battery will support system load and stop charging.

A number of device options allow the MCP73832 and the MCP73833 to be utilized in a variety of applications. Please refer to the MCP73832 data sheet (DS21984) and MCP73833 data sheet (DS22005) for device options.

Specifications

Manufacturer	Microchip Technology
Category	Power Management
Sub-Category	Battery Chargers
Eval Board Part Number	MCP7383XRD-PPM-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	5 V
Voltage Out	4.2 V
Current Out	1 A
Features	Auto Off Auto Re-Charge Cell Preconditioning Cell Temperature Monitoring Current Limit (Adj. or Fixed) Power Good Output Reverse Polarity Protection Safety Timer Status Indication Thermal Protection Under Voltage Protection, Brown-Out
Quiescent Current [Typical]	2 mA
Sleep Mode Current [Typical]	50 µA
Component Count + Extras	13 + 11
Application / Target Market	Audio: MP3 Players Cell Phones Digital Cameras Flashlight / Torch Portable Devices RF: BlueTooth Headsets USB Powered Devices
Design Author	Microchip Technology
Main I.C. Base Part	MCP73833
Quiescent Current [Maximum]	3 mA
Sleep Mode Current [Maximum]	100 µA
Date Created By Author
Date Added To Library	2011-11