MCP7383XRD-PPM MCP7383X Li-Ion System Power Path Management Reference Design

Portable electronics has played an important role in modern era. Due to the natural characteristics of Li-Ion / Li-Polymer batteries, they are the most popular power sources for mobile devices. However, extra care in design is always important to implement Li-Ion / Li-Polymer batteries. System Power Path Management allows end-users to charge their batteries without interruption.

This reference design is developed to assist product designers in reducing product design cycle and time by utilizing Microchip’s favorite stand-alone Li-Ion battery charge management controllers with system power path management.

Load sharing system power path management that support charging single cell Li-Ion battery and system load at the same time without affecting charging algorithm of Microchip’s stand-alone charge management controllers.
The system load is supported by Li-Ion battery when input power source is removed
Blue LED indicates charge status
Additional Red LED to indicate Power-Good (PG) and Green LED to indicate charge complete (Available from MCP73833)
Dip Switch to select programmable fast charge current between1000 mA (H) and 50 mA (L) for MCP73833 and 400 mA (H) and 25 mA (L) for MCP73832
Available THERM pin on the MCP73833 for temperature monitoring with a thermistor. It is disabled by default and can be enabled to use with NTC thermistor

Documentation & Software

AppNotes	Last Updated	Size
AN1149 - Design A Load Sharing System Power Path Management with Microchip's Stand-Alone Li-Ion Battery Charger	7/15/2008 1:59:19 PM	234KB
MCP73831/2 Data Sheet	7/14/2014 4:21:55 PM	823KB
Stand-Alone Linear Li-Ion / Li-Polymer Charge Management Controller Data Sheet	5/4/2009 2:47:57 PM	1MB
MCP7383X Li-Ion System Power Path Management Reference Design	7/16/2008 9:00:49 AM	602KB
MCP7383X Li-Ion System PPM Reference Design Gerbers	7/15/2008 2:39:54 PM	188KB