Microchip Technology MCP1631RD-MCC2 Data Sheet
MCP1631HV Multi-Chemistry Battery Charger Reference Design
DS51791A- page 6
© 2009 Microchip Technology Inc.
1.2
WHAT IS THE MCP1631HV MULTI-CHEMISTRY BATTERY CHARGER
REFERENCE DESIGN?
REFERENCE DESIGN?
The MCP1631HV Multi-Chemistry Battery Charger is a complete stand-alone battery
charger for NiMH, NiCd or Li-Ion battery packs. The board may also be used to drive
LED devices using constant current mode. When charging NiMH or NiCd batteries the
reference design is capable of charging one to five batteries connected in series. If
Li-Ion chemistry is selected, the board is capable of charging one or two series
batteries. When the LED driver is selected, the board is capable of driving one to two
1W LEDs. This board utilizes Microchip’s MCP1631HV (high-speed PWM and
PIC16F883 MCU). The input voltage range for the demo board is 5.3V to 16V.
The board is capable of both boosting and bucking the input voltage in order to obtain
the desired output voltage because a SEPIC converter topology is used. The overvolt-
age limit for the board is set to 9V. The powertrain components may be changed to
allow for higher output voltages and power.
charger for NiMH, NiCd or Li-Ion battery packs. The board may also be used to drive
LED devices using constant current mode. When charging NiMH or NiCd batteries the
reference design is capable of charging one to five batteries connected in series. If
Li-Ion chemistry is selected, the board is capable of charging one or two series
batteries. When the LED driver is selected, the board is capable of driving one to two
1W LEDs. This board utilizes Microchip’s MCP1631HV (high-speed PWM and
PIC16F883 MCU). The input voltage range for the demo board is 5.3V to 16V.
The board is capable of both boosting and bucking the input voltage in order to obtain
the desired output voltage because a SEPIC converter topology is used. The overvolt-
age limit for the board is set to 9V. The powertrain components may be changed to
allow for higher output voltages and power.
TABLE 1-1:
MULTI-CHEMISTRY CHARGER CAPABILITY
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 PIC16F883.
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 PIC16F883.
1.3
WHAT THE MCP1631HV MULTI-CHEMISTRY BATTERY CHARGER
REFERENCE DESIGN KIT INCLUDES
REFERENCE DESIGN KIT INCLUDES
This MCP1631HV Multi-Chemistry Battery Charger Reference Design kit includes:
• The MCP1631HV Multi-Chemistry Battery Charger Board,102-00232
• Analog and Interface Products Demonstration Boards CD-ROM includes
• The MCP1631HV Multi-Chemistry Battery Charger Board,102-00232
• Analog and Interface Products Demonstration Boards CD-ROM includes
(DS21912):
- MCP1631HV Multi-Chemistry Battery Charger User’s Guide, (DS51697).
- MCP1631 Data Sheet, “High-Speed, Microcontroller-Adaptable, Pulse Width
- MCP1631HV Multi-Chemistry Battery Charger User’s Guide, (DS51697).
- MCP1631 Data Sheet, “High-Speed, Microcontroller-Adaptable, Pulse Width
Modulator”
, (DS22063).
- PIC16F883 Data Sheet, “8-Pin Flash-Based, 8-Bit CMOS Microcontrollers
with nanoWatt Technology”
, (DS41291).
- Application Note AN1137, “Using the MCP1631 Family to Develop Low-Cost
Battery Chargers”
, (DS01137).
Battery Chemistry
1 Cell
2 Cell
3 Cell
4 Cell
5 Cell
Li-Ion
2A
1A
NA
NA
NA
NiMH or NiCd
1.5A
1.5A
1.5A
1.5A
1.5A
LED Driver
300 mA
300 mA
NA
NA
NA