MCP1631RD-DCPC1

MCP1631HV Programmable Current Source Reference DesignThe MCP1631HV Digitally Controlled Programmable Current Source Reference Design is used to drive and dim one or more power LEDs in a series or parallel topology depending on the LED’s capability. The reference design may also be used to charge one to four cell NiMH/NiCd or one to two cell Li-Ion battery packs. The board uses the MCP1631HV high-speed analogue PWM controller and a PIC16F616 microcontroller to generate the proper dimming ratio for LEDs or charge algorithm for NiMH, NiCd and Li-Ion batteries. The board is used to evaluate the MCP1631HV in a SEPIC power converter application.Input voltage range: +3.5 to +16V Firmware default output current of 70mA with dimming ratio 10:1 70mA/step Maximum output current of 1000mA Maximum output power of 8.5W Drives one or more LEDs Firmware included for charging Li-Ion, NiMH, and NiCd batteries Single ON/OFF/Dimming switch Status and fault indication Hardware and software overvoltage protection OVP set to +9.0V. The software value can be modified in the source code to be less than +9.0V ### PWM（脉冲频率调制）控制器，Microchip

MCP1631HV Programmable Current Source Reference Design

The MCP1631HV Digitally Controlled Programmable Current Source Reference Design is used to drive and dim one or more power LEDs in a series or parallel topology depending on the LED’s capability. The reference design may also be used to charge one to four cell NiMH/NiCd or one to two cell Li-Ion battery packs. The board uses the MCP1631HV high-speed analogue PWM controller and a PIC16F616 microcontroller to generate the proper dimming ratio for LEDs or charge algorithm for NiMH, NiCd and Li-Ion batteries. The board is used to evaluate the MCP1631HV in a SEPIC power converter application.

Input voltage range: +3.5 to +16V

Firmware default output current of 70mA with dimming ratio 10:1 70mA/step

Maximum output current of 1000mA

Maximum output power of 8.5W

Drives one or more LEDs

Firmware included for charging Li-Ion, NiMH, and NiCd batteries

Single ON/OFF/Dimming switch

Status and fault indication

Hardware and software overvoltage protection OVP set to +9.0V. The software value can be modified in the source code to be less than +9.0V

### PWM（脉冲频率调制）控制器，