Microchip Technology dsPIC33CH, User Manual, Page: 3 / 30

dsPIC33CH CURIOSITY DEVELOPMENT
BOARD USER’S GUIDE
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2018 Microchip Technology Inc.
Advance Information
DS50000000A-page 3
Table of Contents
Preface ........................................................................................................................... 5
Chapter 1. Introduction................................................................................................ 11
1.1 Schematics and Bill of Materials (BOM) ....................................................... 12
Chapter 2. Hardware .................................................................................................... 13
2.1 Powering the Board ...................................................................................... 13
2.1.1 USB Power ................................................................................................ 13
2.1.2 External Power .......................................................................................... 13
2.2 Using the Programmed Demo Firmware ...................................................... 14
2.3 Reprogramming and Debugging the dsPIC33CH128MP508 Device (U1) ...... 14
2.4 Using the Isolated USB-UART Interface ...................................................... 15
2.5 Circuit Details ............................................................................................... 15
2.5.1 Jumpers/Headers/Connectors ................................................................... 15
2.5.2 SMPS Hardware Overcurrent Protection ................................................... 16
2.5.3 SMPS Hardware Overvoltage Protection .................................................. 17
2.5.4 PWM DAC/DC Bias Generator .................................................................. 17
2.5.5 Transient Load Tester Circuit .................................................................... 18
2.6 Low-Side Current Sensing ........................................................................... 19
2.7 High-Side Current Sensing ........................................................................... 20
Appendix A. Schematics ............................................................................................. 21
Appendix B. Bill of Materials....................................................................................... 27
Worldwide Sales and Service .................................................................................... 30