The MCP1630DM-LED2 is a MCP1630 boost mode LED driver demo board, which is a step up, switch mode, dc to dc converter used for power LED applications. The demo board provides a 350mA or 700mA constant current source with a jumper selection. Other output currents can be obtained with minor modifications to the board. The MCP1630 boost mode LED driver demo board utilises MCP1630V high speed pulse width modulator. The 8 pin MCP1630V device contains the analog components necessary for an analog switch mode control loop including an error amplifier, PWM comparator, and a high current driver pin. The switching frequency and maximum duty cycle for the MCP1630V are determined by an external clock source. An 8 pin PIC12F683 microcontroller is used to provide a 500KHz switching clock for the MCP1630. In addition, the PIC12F683 firmware supervises the circuit output voltage and can optionally dim the LEDs when a potentiometer is attached.
Compact size with high output power
High efficiency over entire operating input voltage range
Selectable output current 350mA or 700mA
30W maximum output power
Optional software dimming control
Factory programmed source code provided
Switching frequency, maximum duty cycle, and MCP1630 reference voltage can be modified in firmware
Additional application functions can be provided in firmware
