MCP1631RD-MCC1 Microchip Technology, MCP1631RD-MCC1 Datasheet - Page 27

• Manufacturer Part Number: MCP1631RD-MCC1
• Description: REFERENCE DESIGN FOR MCP1631HV
• Manufacturer: Microchip Technology
• Type: Battery Managementr

Specifications of MCP1631RD-MCC1

• Main Purpose: Power Management, Battery Charger
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP1631HV, PIC16F883
• Primary Attributes: 1 ~ 2 Cell- Li-Ion, 1 ~ 4 Cell- NiCd/NiMH
• Secondary Attributes: Status LEDs
• Supported Devices: MCP1631HV, PIC16F883 Device Type
• Tool / Board Applications: Power Management-Battery Management
• Development Tool Type: Reference Design
• Input Voltage: 5.5 V to 16 V
• Product: Power Management Modules
• Mcu Supported Families: MCP1631HV/PIC16F883 Family
• Silicon Manufacturer: Microchip
• Silicon Core Number: MCP1631HV
• Kit Application Type: Reference Design
• Application Sub Type: Battery Charger
• Kit Contents: Board Only
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MCP1631HV, PIC16F883
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

C.1
FIGURE C-1:
© 2007 Microchip Technology Inc.
Fault
DEVICE FIRMWARE FLOWCHART PAGE 1
No
Precondition
Cell Temp
< 40°C
Cell(s)
For the latest copy of the MCP1631 Multi-Chemistry Battery Charger Reference Design
firmware, visit our web site at www.microchip.com.
Firmware Flowchart.
Appendix C. Demo Board Firmware
Yes
Yes
No
No
ADC, PWM, etc.
I
Initialize Ports,
CHARGE
Reset Timers
Fast Charge
> 0.9V / Cell
dT/dt>1.5C
> 2V/Cell
Is BATT
Is BATT
Is BATT
dV/dt=0
START
Top Off
Li-Ion?
END
1 hr.
= 1.5A
No
Yes
No
Yes
MCP1631 MULTI-CHEMISTRY
Yes
No
Precondition
Cell(s)
REFERENCE DESIGN
BATTERY CHARGER
No
No
MAX = 2.0A 1 Cell
MAX = 1.0A 2 Cell
Increase Current
> 4.4V / Cell
> 3.0V / Cell
Yes
< 140mA?
Is BATT
Is BATT
BATT >
Current
IBATT
DEC
4.2V
No
Yes
Yes
DS51697A-page 23
Yes
No
Fault