Microchip Technology MCP1630RD-NMC1 Data Sheet

DS51648A-page 6

© 2007 Microchip Technology Inc.

The MCP1630 Low-Cost NiMH Battery Charger Reference Design is a complete 
stand-alone constant current battery charger for a three series cell NiMH or NiCd 
battery pack. Different battery chemistries (i.e. Li-Ion batteries connected in series) can 
be charged with minor modifications to the firmware or with the MCP1630 Low-Cost 
NiMH Battery Charger Reference Design. This board utilizes Microchip’s MCP1630 
(high-speed PIC

® 

MCU PWM MSOP8), MCP6292 (Dual op-amp MSOP8), and 

PIC12F683 (Flash MCU SOIC8). The input voltage range for the demo board is 6V to 
14V. The output is capable of charging at a fast charge rate of 1.3A constant current.
An input terminal block is provided to apply the input voltage to the charger. An output 
header is also provided as a means to connect the external battery pack or simulated 
battery load and external 10K thermistor. A programming header is available for 
updating the firmware contained in the PIC12F683.

This MCP1630 Low Cost NiMH Battery Charger Reference Design kit includes:
• The MCP1630 Low-Cost NiMH Battery Charger Reference Design Board, 

(102-00127)

• Analog and Interface Products Demonstration Boards CD-ROM (DS21912)

- MCP1630 Low-Cost NiMH Battery Charger Reference Design User’s Guide, 

(DS51648)