Datasheet

MCP1631HV Multi-Chemistry Battery Charger Reference Design

C.2 SELECTED SOFTWARE CONSTANTS AND DEFINITIONS

1. FOSC_KHZ = 8000

Microprocessor Oscillator Frequency in kHz.

2. CHARGER_SYSTEM = BUCK_BOOST_REF_DESIGN_BOARD

Selects charger system option to build. Multiple options can be created which

each use a single header file containing parameters for that specific system.

Options for CHARGER_SYSTEM are:

MULTICHEMISTRY_REF_DESIGN_BOARD_102_00232

3. DVDT_TERMINATION = ENABLED

Used to mask NiMH termination caused by battery voltage DV/Dt. When

DISABLED, allows the user to create complete charge profile by ignoring battery

voltage termination.

4. DTDT_TERMINATION = ENABLED

Used to mask NiMH termination caused by battery temperature DT/Dt. When

DISABLED, allows the user to create complete charge profile by ignoring battery

temperature termination. Termination due to battery overtemperature is always

enabled.

5. LION_SUPPORT = ENABLED

Enables support for Lithium Ion batteries.

6. NIMH_SUPPORT = ENABLED

Enable support for Nickel Metal Hydride batteries.

7. R24 = ((float)(39.6))

Voltage reference resistor divider highside resistor value (divider at PIC port C1).

8. R34 = ((float)(39.6))

Voltage reference resistor divider lowside resistor value (divider at PIC port C1).

9. MCP1631_ISIN_AMPLIFICATION = 10.0

MCP1631HV ISin Current Sense Input amplification.

10. R6 ((float)(0.22)) = Current Sense (ISin) Resistor

11. R7 ((float)(0.22)) = Current Sense (ISin) Resistor

DoOneSecondTasks()

OFF

Switch (State)

SHDN = 0

SetIRef(0)

Ret