Microchip Technology MCP1631RD-MCC2 Data Sheet

DS51791A-page 40

© 2009 Microchip Technology Inc.

1. Startup the mikroC

TM

 compiler and load the 

“MCP1631HVBuckBoostBatteryChargerReferenceDesign.ppc” if it does not 
load up automatically.

2. Startup MPLAB and load the 

“MCP1631HVBuckBoostBatteryChargerReferenceDesign.mcw” workspace if it 
does not start up automatically.

1. In the mikroC

™

 “Project Summary” frame, click on the “H files” branch to expand 

the ‘.H’ file list.

2. Double click on the 

“MULTICHEMISTRY_REF_DESIGN_BOARD_102_00232.H” file to open it.

3. Scroll through the header file and locate “#define LION_SUPPORT”.

Set it to “ENABLED”.

4. Scroll through the header file and locate “#define NIMH_SUPPORT”.

Set it to “DISABLED”.

5. Scroll through the header file and locate “#define LED_DRIVER_SUPPORT”. 

Set it to “DISABLED”.

6. Scroll down to the “#IF (LION_SUPPORT == ENABLED) section of the header 

file. The section contains Lithium Ion specific parameters. Note that there is a 
Nickel Metal Hydride and LED Driver section also.

7. Set the LI_ION_CONDITION_CURRENT to 200 mAh. (Conditioning mode 

current)

8. Set the LI_ION_CONDITION_VOLTAGE to 3000 mV. (Transition point from 

Conditioning to CC mode)

9. Set the LI_ION_CHARGE_CURRENT to 1200 mAh. (CC mode current)
10. Set the LI_ION_CHARGE_TERMINATION_CURRENT to 84 mAh. (0.07C – 

Termination Current for CV mode)

11. Save the file (File | Save).
12. Compile (Project | Build).
13. Open MPLAB and load the workspace if it is not already loaded. (File | Open 

Workspace) 

{Source 

Directory}\MCP1631HVBuckBoostBatteryChargerReferenceDesign.mcw

14. Import the new “MCP1631HVBuckBoostBatteryChargerReferenceDesign.hex” 

file. (File | Import)

15. Download the file (Debugger | Program) and reset the processor (Debugger | 

Reset | Processor Reset).

16. Run the new program (Debugger | Run).
17. Calibrate the Li-Ion Termination Voltage.
18. Disconnect and turn on the power supply and set the variable output voltage to 

4.200V. Turn off the power supply.

19. Connect the fixed 12V supply (+) lead to the input connector (+) pin J1-1.
20. Connect the fixed 12V supply (-) lead to the input connector (-) pin J1-2.
21. Connect the 4.200V variable supply (+) lead to the battery connector (+) pin J2-1.
22. Connect the 4.200V variable supply (-) lead to the battery connector (-) pin J2-5.
23. Turn on the power supply.