Microchip Technology MCP1630DM-DDBS1 User Manual

DS51608B-page 6

© 2007 Microchip Technology Inc.

The MCP1630 Automotive Input Boost Converter Demo Board demonstrates the use 
of a conventional boost topology with automotive input. The board also serves as a 
platform to evaluate the MCP1630/V devices.
The MCP1630/V inputs were developed to be easily attached to the I/O of a 
microcontroller. The Microcontroller Unit (MCU) supplies the oscillator pulses and 
reference voltage (V

REF

) to the MCP1630/V devices to provide the most flexible and 

adaptable power system. The power system switching frequency and maximum duty 
cycle are set using the I/O of the MCU. The reference input to the high-speed PWM can 
be external, a D/A Converter (DAC) output or as simple as an I/O output from the MCU. 
This enables the power system to adapt to many external signals and variables in order 
to optimize performance and facilitate calibration.
This board utilizes Microchip's MCP1630/V (high-speed PICmicro

®

 MCU PWM) 

integrated with PIC12F683 (Flash MCU SOIC8) in automotive input application. Under 
normal operation, the vehicle voltage at the supply lines ranges between 9V-18V (12V 
system). The converter is capable of delivering an output voltage of 36.5V at 400 mA 
load current with maximum power of 14.6W. The line and load regulation is within the 
regulation band of 3%.

This MCP1630 Automotive Input Boost Converter Demo Board kit includes:
• MCP1630 Automotive Input Boost Converter Demo Board (102-00095)
• Analog and Interface Products Demonstration Boards CD-ROM (DS21912)

- MCP1630 Automotive Input Boost Converter Demo Board User’s Guide 

(DS51608)