Microchip Technology dsPICDEM MCLV-2 User Manual

dsPICDEM™ MCLV-2

Development Board

User’s Guide

 2012 Microchip Technology Inc. DS52080A

Note the following details of the code protection feature on Microchip devices:

YSTEM

CERTIFIED BY DNV

== ISO/TS 16949 ==

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device
applications and t he lik e is provided only for your convenience
and may be su perseded by upda t es . It is y our responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life supp ort and/or safety ap plications is entir ely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless M icrochip from any and all dama ges, claims,
suits, or expenses re sulting from such use. No licens es are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC,
K

EELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,

32

PIC

logo, rfPIC and UNI/O are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.

FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, chipKIT,
chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,
dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,
FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,
Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,
MPLINK, mTouch, Omniscient Code Generation, PICC,
PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE,
rfLAB, Select Mode, Total Endurance, TSHARC,
UniWinDriver, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.

SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.

All other trademarks mentioned herein are property of their
respective companies.

© 2012, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.

Printed on recycled paper.

QUALITY MANAGEMENT S

DS52080A-page 2  2012 Microchip Technology Inc.

ISBN: 978-1-62076-293-6

Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.

®

MCUs and dsPIC® DSCs, KEELOQ

®

code hopping

 2012 Microchip Technology Inc. DS52080 A-page 3

dsPICDEM™ MCLV-2 Development Board User’s Guide

NOTES:

DS52080A-page 4  2012 Microchip Technology Inc.

dsPICDEM™ MCLV-2 DEVELOPMENT

BOARD USER’S GUIDE

Table of Contents

Preface ...........................................................................................................................7

Chapter 1. Introduction

1.1 Overview of the dsPICDEM MCLV-2 Development Board ........................... 13

1.2 Features Ove rview .............. .. ....................................................................... 14

Chapter 2. Hardware Overview

2.1 PIM Configu r a tio n ......... ............................. ................................................... 18

2.2 Board Connectors ........................................................................................20

2.3 Selecting a Power Supply for the Development Board ................................24

2.4 User Interf a c e H a rd wa re .................. ............................................................ 24

Chapter 3. Running a BLDC Motor Using a Sensorless Algorithm

3.1 Operating Requirements ..............................................................................27

3.2 dsPICDEM M C L V-2 Developmen t B o a rd S et u p ........ ... ............................... 28

Appendix A. Schematics and Layout.........................................................................41

Appendix B. Electrical Specifications........................................................................43

Worldwide Sales and Service ....................................................................................44

 2012 Microchip Technology Inc. DS52080A-page 5

dsPICDEM™ MCLV-2 Development Board User’s Guide

NOTES:

DS52080A-page 6  2012 Microchip Technology Inc.

dsPICDEM™ MCLV-2 DEVELOPMENT

BOARD USER’S GUIDE

Preface

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs and/
or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the p age number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.

For the most up-to-date information on development tools, see the MPLAB
Select the Help menu, and then Topics to open a list of available on-line help files.

®

IDE on-line help.

INTRODUCTION

This chapter contains general information that will be useful to know before using the
dsPICDEM™ MCLV-2 Development Board. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Warranty Registration

• Recommended Reading

• The Microchip Web Site

• Development Systems Customer Change Notification Service

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This user’s guide describes how to use the dsPICDEM™ MCL V-2 Development Board.
The document is organized as follow s:

• Chapter 1. “Introduction” – This chapter introduces the dsPICDEM™ MCLV-2
Development Board and provides an overview of various features.

• Chapter 2. “Hard wa re Ov erv iew ” – This chapter describes the hardware
components of the dsPICDEM™ MCLV-2 Development Board.

• Chapter 3. “Running a BLDC Motor Using a Sensorless Algorithm” – This
chapter describes how to run a sensored BLDC motor using a dsPIC
device.

• Appendix A. “Schematics and Layout” – This appendix provides detailed
circuit schematics of the dsPICDEM™ MCLV-2 Development Board.

• Appendix B. “Electrical Specifications” – This appendix lists the DC input and
output ratings for the dsPICDEM™ MCLV-2 Development Board.

®

DSC

 2012 Microchip Technology Inc. DS52080A-page 7

dsPICDEM™ MCLV-2 Development Board User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following docum entat io n conven tion s:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic chara c ters Referenced books MPLAB

Emphasized text ...is the only compiler...

Initial caps A window the Output window

A dialog the Settings dialog
A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

Underlined, italic text with
right angle bracket

Bold characters A dialog button Click OK

N‘Rnnnn A number in verilog format,

Text in angle brac kets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sample source code #define START

Italic Courier New A variable argument file.o, where file can be

Square brackets [] Optional arguments mcc18 [options] file

Curly brackets and pipe
character: { | }

Ellipses... Replaces r epeated text var_name [,

A menu path File>Save

A tab Click the Power tab

where N is the tota l number of
digits, R is th e radi x and n is a
digit

Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’

Choice of mut ually exclus ive
arguments; an OR selection

Represents code supplied by
user

“Save project before build”

4‘b0010, 2‘hF1

any valid filename

[options]
errorlevel {0|1}

var_name...]
void main (void)

{ ...
}

®

IDE User’s Guide

DS52080A-page 8  2012 Microchip Technology Inc.

WARRANTY REGISTRATION

Please complete and mail the Warranty Registration Card that was enclose d with the
development board. Sending in the registration card entitles you to receive new product
updates. Interim software releases are available at the Microchip web site.

RECOMMENDED READING

This user’s guide describes how to use the dsPICDEM™ MCLV-2 Development Board.
The device-specific data sheets contain current information on programming the specific
microcontroller or digital signal controller devices. Other useful documents are listed
below. The following Microchip documents are available and recommended as
supplemental reference resources:

MPLAB

This user’s guide is a comprehensive guide that describes installation and features of
Microchip’s MPLAB Integrated Development Environment (IDE), as well as the editor
and simulator functions in the MPLAB IDE environment.

Readme Files

For the latest information on using other tools, read the tool-specific Readme files in the
Readme subdirectory of the MPLAB IDE installation directory. The Readme files contain
updated information and known issues that may not be included in this user’s guide.

MP ASM™ Assembler, MPLINK™ Object Linker , MPLIB™ Object Librarian User’s
Guide (DS33014)

This user’s guide describes how to use the Microchip MPASM Assembler, the MPLINK
Object Linker and the MPLIB Object Librarian.

dsPIC33EP256MC506 Plug-In Module (PIM) Information Shee t for Internal Op
amp Configuration (DS52062)

This information sheet provides information specific to the dsPIC33EP256MC506
Internal Op amp Configuration Plug-In Module (PIM).

®

IDE Simulator, Editor User’s Guide (DS51025)

Preface

 2012 Microchip Technology Inc. DS52080 A-page 9

dsPICDEM™ MCLV-2 Development Board User’s Guide

THE MICROCHI P WEB SITE

Microchip provides online support via our web site at www.microchip.com. This web
site is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the web site contains the following
information:

• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software

• General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listin g

• Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives

DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE

Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notification whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.

To register, access the Microchip web site at www.microchip.com, click on Customer
Change Notification and follow the registration instructions.

The Development Systems product group categories are:

• Compilers – The latest information on Microchip C compilers and other language
tools. These include the MPLAB
assemblers; MPLINK™ and MPLAB 16-bit object linkers; and MPLIB™ and
MPLAB 16-bit object librarians.

• Emulators – The latest information on the Microchip MPLAB REAL ICE™
in-circuit emulator.

• In-Circuit Debuggers – The latest information on the Microchip in-circuit
debugger, MPLAB ICD 3.

• MPLAB IDE – The latest information on Microchip MPLAB IDE, the Windows
Integrated Development Environment for development systems tools. This list is
focused on the MPLAB IDE, MPLAB SIM simulator, MPLAB IDE Project Manager
and general editing and debugging features.

• Programmers – The latest information on Microchip programmers. These include
the MPLAB PM3 device programmer and the PICkit™ 3 development
programmers.

®

C compiler; MPASM™ and MPLAB 16-bit

®

DS52080A-page 10  2012 Microchip Technology Inc.

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support
Customers should contact their distributor, representative or Field Application Engineer

(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.

Technical support is available through the web site at: http://support.microchip.com

DOCUMENT REVISION HISTORY

Revision A (June 2012)

This is the initial released version of this document.

Preface

 2012 Microchip Technology Inc. DS52080A-page 11

dsPICDEM™ MCLV-2 Development Board User’s Guide

NOTES:

DS52080A-page 12  2012 Microchip Technology Inc.

dsPICDEM™ MCLV-2 DEVELOPMENT

BOARD USER’S GUIDE

Chapter 1. Introduction

The dsPICDEM™ MCLV-2 Development Board is targeted to control a brushless DC
(BLDC) motor or permanent magnet synchronous motor (PMSM) in sensor or
sensorless operation. This flexible and cost-effective board can be configured in
different ways for use with Microchip’s specialized motor control Digital Signal Control­lers (DSCs) and Microcontrollers (MCUs). The dsPICDEM MCLV- 2 Development
Board is essentially a backwardly-compatible upgraded version of the dsPICDEM
MCLV Development Board.

The dsPICDEM MCLV-2 Development Board supports the dsPIC33F, PIC24F,
dsPIC33E, and PIC24E motor control device families. It offers a mounting option to
connect a generic 100-pin Plug-In Module (PIM). The board also has a three-phase
inverter bridge circuit. The circuit drives a BLDC or PMSM motor using different control
techniques without requiring any additional hardware. Topics covered include:

• Overview of the dsPICDEM MCLV-2 Development Board

• Features Overview

1.1 OVERVIEW OF THE dsPICDEM MCLV-2 DEV ELOPMENT BOARD

Figure 1-1 shows a simplified block diagram of the dsPICDEM MCLV-2 Development

Board. The board includes various circuitry to perform the following functions:

• Drive a three-phase inverter that powers the motor phase windings

• Measure feedback signals (e.g., voltage and phase currents) and provide a
suitable fault signal

• Interface with Hall sensor or quadrature encoder for sensor-based commutation

• Communicate with a host computer or an external device via CAN, LIN, USB, or
RS-232 interface

The development board supports motors with terminal voltage up to 48V and current
up to 15A. Refer to Appendix B. “Electrical Specifications” for more information on
electrical specifi ca tio ns.

 2012 Microchip Technology Inc. DS52080A-page 13

dsPICDEM™ MCLV-2 Development Board User’s Guide

1.2 FEATURES OVERVIEW

The key features of this board include the following:

• Motor Control Interfaces:

- Three-phase inverter bridge with a power rating of 48V/15A

- Hall sensors/quadrature encoder interface for sensored motor control (J7)

- Phase voltage feedback for sensorless BLDC operation

- DC bus current sense resistor for single shunt vector control

- Phase current sense resistor for dual shunt vector control

- Overcurrent protection

- Support for PIC24 MCUs and dsPIC DSCs with internal or external op amps
and comparators

• Input/Output Control Switches:

- Two push-buttons (S2 and S3)

- Two LED indicators for debugging purposes (D2 and D17)

- Reset push-button (S1)

- 10 k potentiometer (POT1)

- LED indicator for PWM outputs

• Communication Ports:

- CAN interface port (J4)

- LIN interface port (J1)

- UART communication via USB (J8)

- UART communication via RS-232 (J10)

• Power Supply Connectors:

- Auxiliary Power Tab Fast-On connectors (BP1 and BP2) for the controller and
power stage

- 24V power input connector (J2) for the controller

- Dedicated power connector (J7) for the power stage

• Programming Connectors:

- ICSP™ connector for programming a dsPIC DSC or PIC24 MCU (J12)

- RJ11 connector for programming a dsPIC DSC or PIC24 MCU (J11)

- ICSP connector for programming the PIC18LF2450 USB to UART Bridge (J9)

DS52080A-page 14  2012 Microchip Technology Inc.

Introduction

M

PWM1L1

3.3V 5V

15V

JP4

-

JP5

Plug-In Module

ICD2

LIN

CAN

USB

Driver

U5:C

U5:A

U5:B

JP1-JP3

Potential

Divider

S2

S3

J11/J12

J1

J4

J8

FAULT_MC

Safe Current

Limit

IMOTOR2

IMOTOR_SUM

HA

HB

HC

V_M3

V_M2

V_M1

V_M1

V_M2

V_M3

J2

J6

-

M3

M1

M2

HA

HB

HC

5V

Regulator

Regulator

Regulator

Three-Phase Inverter

R32

R16

R12

M1

M2

M3

BP1

BP2

+

M3

M1

M2

DC+

V

BUS

REC_NEUTR

Matrix
Board

J14

IMOTOR1

V_M3

V_M2

V_M1

V

BUS

REC_NEUTR

POT

PWM1H3

J3

J7

V

BUS

HOME

VREF

LED D2

LED D17

HOME

RS232J10

HA

HB

HC

U11

M3

U9

FIGURE 1-1: dsPICDEM™ MCLV-2 DEVELOPMENT BOARD BLOCK DIAGRAM

 2012 Microchip Technology Inc. DS52080A-page 15

dsPICDEM™ MCLV-2 Development Board User’s Guide

NOTES:

DS52080A-page 16  2012 Microchip Technology Inc.

dsPICDEM™ MCLV-2 DEVELOPMENT

BOARD USER’S GUIDE

Chapter 2. Hardware Overview

This chapter describes the hardware components of the dsPICDEM MCLV-2
Development Board. Topics covered include:

• PIM Configuration

• Board Connectors

• User Interface Hardware
Power for the control circuits and DC bus on the board is provided through a +24V

power supply attached to the Power Connector terminal (J2) or the Auxiliary Power Tab
Fast-On Connector terminals (BP1-BP2). The Microchip 24V Power Supply
(AC002013) is recommended.

The various components on the board receive power as follows:

• The Gate drivers receive +15V power from a 15V regulator

• The CAN driver receives +5V power from a 5V regulator

• The LIN driver receives V

• A dsPIC DS C or PIC24 MCU motor control device receives +3.3V power from a

+3.3V regulator

• The RS-232 UART interface receives +3.3V power from a +3.3V regulator

• The PIC18LF2450 USB to UART Bridge receives +3.3V power from a +3.3V

regulator

BAT power from the LIN connector J1.

Note 1: If the input voltage value is less than 16V, remove the 15V voltage

regulator and short jumper J3.

2: To use a higher DC voltage bus (24V-48V), complete the following steps:

a) Connect the power supply to jumper J7, and keep jumper J6 open.
b) Power the circuit components, MCU, and the gate drivers using a

separate 16V-24V power supply connected to the power connector
J2 or BP1-BP2.

 2012 Microchip Technology Inc. DS52080A-page 17

dsPICDEM™ MCLV-2 Development Board User’s Guide

2.1 PIM CONFIGURATION

Table 2-1 summarizes the PIM pinout for the dsPICDEM MCLV-2 Development Board.

TABLE 2-1: dsPICDEM MCLV-2 DEVELOPMENT BOARD PIM PINOUT FUNCTIONALITY

PIM Pin # Signal Name Pinout Description Routed via Matrix Board

1 DBG _LE D2 Debug LED 2 No
2V
3 PWM1H3 PWM Output - 3H No
4N/AN/A No
5N/AN/A No
6N/AN/A No
7N/AN/A No
8N/AN/A No

9N/AN/A No
10 N/A N/A No
11 N/A N/A No
12 N/A N/A No
13 MCLR
14 N/A N/A No
15 V
16 V
17 N/A N/A No
18 FAULT DC BUS Current Fault (active low logic) No
19 TX UART Transmit No
20 PIM_V_M3 Voltage feedback signal Yes
21 PIM_V_M2 Voltage feedback signal Yes
22 PIM_V_M1 Voltage feedback signal Yes
23 PIM_IMOTOR_SUM DC bus current signal Yes
24 PIM_IMOTOR2 Phase current signal Yes
25 PIM_IMOTOR1 Phase current signal Yes
26 PGC Device programming clock line No
27 PGD Device programming data line No
28 V
29 PIM_REC_NEUTR Reconstructed motor neutral line voltage Yes
30 AV
31 AV
32 PIM_POT Potentiometer signal Yes
33 N/A N/A No
34 PIM_GEN2 General I/O Yes
35 PIM_VBUS DC bus voltage (downscaled) Yes
36 V
37 V
38 N/A N/A No
39 N/A N/A No
40 N/A N/A No
41 PIM_MONITOR_1 Hall sensor/Current sense/Voltage feedback signal Yes
42 PIM_MONITOR_2 Hall sensor/Current sense/Voltage feedback signal Yes
43 PIM_MONITOR_3 Hall sensor/Current sense/Voltage feedback signal Yes
44 N/A N/A No
45 V
46 V
47 HALLB Hall sensor/QEI input No
48 HALLC Hall sensor/QEI input No

DD N/A No

Device Master Clear No

SS N/A No
DD N/A No

REF Reference voltage (half of AVDD voltage) No

DD Analog supply No
SS Analog supply No

SS N/A No
DD N/A No

SS N/A No
DD N/A No

DS52080A-page 18  2012 Microchip Technology Inc.

Hardware Overview

TABLE 2-1: dsPICDEM MCLV-2 DEVELOPMENT BOARD PIM PINOUT FUNCTIONALITY

PIM Pin # Signal Name Pinout Description Routed via Matrix Board

49 RX UART Receive No
50 TX UART Transmit No
51 USB_TX UART Transmit (connected directly to U7) No
52 USB_RX UART Receive (connected directly to U7) No
53 N/A N/A No
54 N/A N/A No
55 N/A N/A No
56 N/A N/A No
57 N/A N/A No
58 PIM_FLT_OUT2 General I/O Yes
59 PIM_FLT_OUT1 General I/O Yes
60 DBG_LED1 Debug LED 1 No
61 HOME Home signal for QEI No
62 V
63 OSC1/CLKO Crystal oscillator in No
64 OSC2/CLKI Crystal oscillator out No
65 V
66 PIM_IBUS+ B US curre nt shunt signal Yes
67 PIM_IBUS- BUS current shunt signal Yes
68 LIN_CS LIN Chip Select signal No
69 LIN_FAULT LIN Fault signal No
70 RX UART Receive No
71 N/A N/A No
72 USB_RX UART Receive (connected directly to U7) No
73 PIM_IB+ IMOTOR1 shunt signal Yes
74 PIM_IA+ IMOTOR2 shunt signal Yes
75 V
76 USB_TX UART Transmit (connected directly to U7) No
77 CAN_TX CAN Transmit No
78 CAN_RX CAN Receive No
79 N/A N/A No
80 HALLA Hall sensor/QEI input No
81 N/A N/A No
82 PIM_GEN1 General I/O Yes
83 BTN_1 Push-button S2 input No
84 BTN_2 Push-button S3 input No
85 N/A N/A No
86 V
87 CAN_RX CAN Receive No
88 CAN_TX CAN Transmit No
89 N/A N/A No
90 N/A N/A No
91 N/A N/A No
92 N/A N/A No
93 PWM1L1 PWM Output - 1L No
94 PWM1H1 PW M Output - 1H No
95 N/A N/A No
96 N/A N/A No
97 N/A N/A No
98 PWM1L2 PWM Output - 2L No
99 PWM1H2 PW M Output - 2H No

100 PW M 1L3 PWM Output - 3L No

DD N/A No

SS N/A No

SS N/A No

DD N/A No

 2012 Microchip Technology Inc. DS52080A-page 19

dsPICDEM™ MCLV-2 Development Board User’s Guide

J2

J6

J7

D10-D15

S2

S3

J10

BP1-BP2

J11

J9

J8

J3

JP4

JP5

JP2

JP3

JP1

J4

J1

J5

S1

J12

U9

D2

D17

J14

2.2 BOARD CONNECTORS

Table 2-2 describes the hardwar e conn ection between MPLAB ICD 3 or MPLAB REA L

ICE™ In-Circuit Emulator, the power supply, and the dsPICDEM MCLV -2 Development
Board connector s.

TABLE 2-2: BOARD CONNECTORS

Number Designator Description

1 BP1-BP2 Auxiliary power supply connector
2 J1 LIN interface port
3 J2 Input power supply connector
4 J4 CAN interface port
5 J7 Motor power connector, Hall sensors/Quadrature encoder connector

and DC bus power supply connector
6 J8 USB interface port
7 J9 ICSP™ programmer interface connector for programming the

PIC18LF2450 USB to UART Bridge
8 J10 RS-232 interface port
9 J11 RJ11, 6-pin connector for programming a dsPIC

10 J12 ICSP connector for programming a dsP IC DSC or PIC24 MCU

DSC or PIC24 MCU

Figure 2-1 shows various connectors and jumpers available on the dsPICDEM MCLV-2

Development Board.

FIGURE 2-1: dsPICDEM™ MCLV-2 DEVELOPMENT BOARD CONNECTORS AND JUMPERS

DS52080A-page 20  2012 Microchip Technology Inc.

Hardware Overview

2.2.1 Input Power Connector (J2, BP1-BP2)

The dsPICDEM MCLV-2 Development Board receives the power for control circuits
and the DC bus from a +24V power supply. It is connected to the board through J2 or
BP1-BP2 points.

2.2.2 DC Bus Power Supply Connector (J6 and J7)

By default, jumper J6 is short, and the +24V input power supply connected to J2 or
BP1-BP2 supplies the DC bus voltage to the board.

2.2.3 CAN Interface (J4)

The board has a MCP2551 High-Speed CAN Transceiver, which is connected to the
dsPIC DSC or PIC24 MCU through jumpers JP4 and JP5. The CAN transceiver
converts the differential signal on the CAN bus to a digital signal for the ECAN™ mod­ule. It also converts the ECAN output digital signal to a differential signal for the CAN
bus. In Sleep mode, the CAN transmitter is turned off, and the receiver operates at a
lower current level. The control device monitors the CAN activity and switches the
transceiver back to normal operation when needed. For more information, refer to the
data sheet, MCP2551 “High-Speed CAN Transceiver” (DS21667).

2.2.4 LIN Interface (J1)

The board has a MCP2021 High-Speed LIN Transceiver, which is connected to the
dsPIC DSC or PIC24 MCU through jumpers JP4 and JP5. The LIN transceiver
monitors the LIN bus, conditions the incoming signal, and passes it to the UART mod­ule on the control device. The LIN transceiver responds to a “Transmit Enable” from the
control device by conditioning an output signal and placing it on the LIN bus. A
power-down mode turns the transmitter and voltage regulator off, leaving only the
receiver and wake-up circuits in operation. The LIN circuit includes a Master/Slave
jumper to accommodate a Master node on the LIN bus. For more information, refer to
the data sheet, MCP202X “LIN Transceiver with Voltage Regulator” (DS22018).

2.2.5 USB Interface (J8)

The board uses an on-board PIC18 interface as a bridge between the UART and USB.
The PIC18 UART pins are connected to the dsPIC DSC or PIC24 MCU through
jumpers JP4 and JP5.

2.2.6 ICD 3 Connector (J11- J12)

The ICD 3 connector is an RJ11 female connector (J11) that connects the MPLAB
ICD 3 In-Circuit Debugger/Emulator to the dsPIC DSC or PIC24 MCU for programming
and debugging purposes. The ICD 3 can also be connected to the board using 6-pin
ICSP connector (J12).

2.2.7 ICSP for PIC18 (J9)

The jumper J9 is a 6-pin connector that connects the PICkit™ 3 development
programmer to the PIC18F device. The board uses the on-board PIC18 interface as a
bridge between the UART and USB. The PIC18F is programmed for USB
communication.

2.2.8 RS-232 Connector (J10)

The connector J10 is an RS-232 interface port. The board uses the UART connector
to pass the UART signals from the dsPIC DSC or PIC24 MCU to the dedicated UART
IC MAX3232CUE. The output of U14 is provided to the connector J10.

 2012 Microchip Technology Inc. DS52080A-page 21

dsPICDEM™ MCLV-2 Development Board User’s Guide

2.2.9 Motor Connector (J7)

The motor connector (J7) has 12 terminals. Table 2-3 shows the functionality of each
terminal.

TABLE 2-3: MOTOR CONNECTOR DETAILS

Pin T erm inal Name Function

1
2 – Ground

3 M3 Motor winding phase 3
4 M2 Motor winding phase 2
5 M1 Motor winding phase 1
6 G Ground
7
8 GND Hall se nsors ground

9 HALLA Hall A/QEA feedback
10 HALLB Hall B/QEB feedback
1 1 HALLC Hall C/INDEX feedback
12 HOME Home signal feedback

+

+5V Hall sensors/Quadrature encoder power supply

Table 2-4 lists the test points that can be used to check various signals.

External DC bus power supply

TABLE 2-4: TEST POINTS

Test Points Description

HA Hall A/QEA feedback
HB Hall B/QEB feedback
HC Hal l C/INDEX feedback

HOME Home signal feedback

PWM1H1 PWM output for leg 1 top switch

PWM1L1 PWM output for leg 1 bottom switch

PWM1H2 PWM output for leg 2 top switch

PWM1L2 PWM output for leg 2 bottom switch

PWM1H3 PWM output for leg 3 top switch

PWM1L3 PWM output for leg 3 bottom switch

Fault Fault pin

V1 Motor phase 1 voltage feedback
V2 Motor phase 2 voltage feedback
V3 Motor phase 3 voltage feedback

Ref 1.65V reference for current feedback

POT1 POT signal
MONITOR_1 Motor feedback signal 1
MONITOR_2 Motor feedback signal 2
MONITOR_3 Motor feedback signal 3

I1 Phase 1 current
I2 Phase 2 current

IBUS Bus current

P1 +3.3V (digital)
P2 GND (digital)
P3 +5V
P4 AV
P5 +15V

AV

SS Analog ground

VBUS Bus voltage (downscaled)

DD

DS52080A-page 22  2012 Microchip Technology Inc.

Hardware Overview

Shunt resistor signals (Direct)

Reconstructed motor neutral voltage

Feedback signals (Hall sensor/

DC bus voltage

Potentiometer

Matrix

PIM

Board

Phase voltage/Shunt resistor)

2.2.10 The Matrix Board Interface

The matrix board interface facilitates the following functions:

• Connects the appropriate signals to the correct pins on the Plug-In Module (PIM)

• Disconnects signals and provides isolation on signal paths that, in a particular
hardware configuration, are not being used

The matrix board header has two rows of pins. One row (pins 1-25) hosts signals from
different signal sources, the other (pins 26-50) hosts connections to the PIM. Figure 2-2
is a block diagram that describes the matrix board interface.

FIGURE 2-2: MATRIX BOARD BLOCK DIAGRAM

2.2.10.1 INTERNAL AND EXTERNAL OP AMP MATRIX BOARDS

The dsPICDEM MCL V-2 Development Board uses discrete op amps (U5) to amplify the
shunt resistor signals. Alternatively, some PIC24 MCUs or dsPIC DSCs are designed
with op amps on-board that can be used for this purpose. T o accommodate these two
basic configurations, the dsPICDEM MCLV-2 Development Board includes two matrix
boards.

• The Internal Op Amp Configuration Matrix Board configures the development
board to use op amps that are internal to the PIC24 MCU or dsPIC DSC. This
matrix board bypasses the current feedback circuitry on the dsPICDEM MCLV-2
Development Board and directly connects the shunt resistor signals to appropriate
pins of the PIM.

• The External Op Amp Configuration Matrix Board configures the development
board to use the current feedback circuitry on the dsPICDEM MCLV-2 Develop­ment Board. This matrix board disconnects the shunt resistor signals from the PIM
pins and connects the current feedback circuitry output to the appropriate PIM
pins.

Note: Unless specified in the PIM information sheet, all PIMs are compatible only

with the External Op amp Configuration matrix board. Certain PIMs are
designed to work only with the Internal Op amp Configuration matrix
boards. In this case, the corresponding PIM information sheet (available at

www.microchip.com/pims) will explicitly state this.

 2012 Microchip Technology Inc. DS52080A-page 23

dsPICDEM™ MCLV-2 Development Board User’s Guide

JP1

Note 1: The JP1, JP2 and JP3 jumper pairs select the feedback signals required for the motor control algorithm.

2: The JP4 and JP5 jumper pairs select the communication bus for the transmit and receive pins.

JP2 JP3

JP4 JP5

Curr Volt Hall Curr Volt Hall Curr Volt Hall

USB LIN CAN UART USB LIN CAN UART

Rx Tx

MONITOR_1 MONITOR_2 MONITOR_3

2.3 SELECTING A POWER SUPPLY FOR THE DEVELOPMENT BOARD

The following connectors and power jumpers, when configured, offer multiple power
supply configuration options for the dsPICDEM MCLV-2 Development Board.

• Input Power Connector (J2 or BP1-BP2)

• Bypass 15V Regulator (J3)

• DC Bus Power Supply Jumper (J6)

• Motor Power Connector with pins, ‘+’ and ‘-’ (J7)
To locate these components, refer to Figure 1-1.

Table 2-5 describes how to select the required power supply configuration option by

setting jumpers J3 and J6.

TABLE 2-5: JUMPER SETTINGS FOR SELECTING A POWER SUPPLY

J3 J6 J2 or BP1-BP2 J7: Pins ‘+’ and ‘-’

Remove the jumper Remove the jumper 16V to 24V 0V to 48V
Remove the jumper Install the jumper 16V to 24V Supplied by J2 or BP1-BP2

Install the jumper
Install the jumper

Note 1: When J3 is installed, VR3 must be removed to avoid damage to the 15V regulator.

(1)
(1)

Remove the jumper 10V to 16V 0V to 48V

Install the jumper 10V to 16V Supplied by J2 or BP1-BP2

2.4 USER INTERFACE HARDWARE

2.4.1 Jumpers

The dsPICDEM MCLV-2 Development Board has nine jumpers that configure the
functionality of the board. Figure 2-3 shows the jumper settings and Table 2-6 lists
these jumpers and their functions.

FIGURE 2-3: JUMPER SETTINGS

DS52080A-page 24  2012 Microchip Technology Inc.

Hardware Overview

TABLE 2-6: JUMPER DESCRIPTIONS

No. Designator Position Description

1 JP1 1-2 Connects current sense phase 1 to MONITOR_1

3-4 Connects voltage sense phase 1 to MONITOR_1
5-6 Connects Hall sensor interface HA to MONITOR_1

2 JP2 1-2 Connects current sense phase 2 to MONITOR_2

3-4 Connects voltage sense phase 2 to MONITOR_2
5-6 Connects Hall sensor interface HB to MONITOR_2

3 JP3 1-2 Connects current sense DC Bus to MONITOR_3

3-4 Connects voltage sense phase 3 to MONITOR_3
5-6 Connects Hall sensor interface HC to MONITOR_3

4 JP4 1-2 Connects USB receive line to Rx

3-4 Connects LIN receive line to Rx
5-6 Connects CAN receive line to Rx
7-8 Connects UART receive line to Rx

5 JP5 1-2 Connects USB transmit line to Tx

3-4 Connects LIN transmit line to Tx
5-6 Connects CAN transmit line to Tx
7-8 Connects UART transmit line to Tx

TABLE 2-7: ADDITIONAL JUMPERS

Designator Functions

J3 Bypass 15V regulator connector for gate driver IC
J5 LIN master select
J6 Connects BP1-BP2/J2 to motor connector block J7

JP11 CAN end enable

 2012 Microchip Technology Inc. DS52080A-page 25

dsPICDEM™ MCLV-2 Development Board User’s Guide

2.4.2 Push-Buttons, LEDs, Bus Resistors and Potentiometers

The dsPICDEM MCLV-2 Development Board consists of the following items:

• Two push-buttons

• One potentiometer

• Six LEDs for PWM

• Two LEDs for debugging purposes

• Two power-on status LEDs

• Two USB LEDs

• Device Reset push-button

TABLE 2-8: INDICATORS AND HUMAN INTERFACES

Label Hardware Element Description

S2, S3 Push-buttons; these push-buttons are connected to port pins.

When momentarily pressed, the switch connects the respective
port pin to Ground.

POT 10 k

D3 Power-on status LED, which indicates the status of the 5V

D4 Power-on status LED, which indicates the status of the

D8 USB communication indicator, which indicates the device has been

D10-D15 LEDs, which indicate the PWM pin status.

D16 USB bus indicator, which indicates that the device is connected to

D2, D17 LEDs to be used for debugging purposes.

S1 Push-button used to reset the target device.

 potentiometer; it is connected to analog input pin.

regulator.

regulator.

detected.

the USB bus.

+3.3V

DS52080A-page 26  2012 Microchip Technology Inc.

dsPICDEM™ MCLV-2 DEVELOPMENT

BOARD USER’S GUIDE

Chapter 3. Running a BLDC Motor Using a Sensorless

Algorithm

This chapter describes how to set up the dsPICDEM MCLV-2 Development Board in
the Internal Op amp configuration to run a BLDC motor using the Single-Shunt Current
Reconstruction Algorithm using a dsPICDEM™ MCLV-2 Development Board. The
algorithm is described in AN1299 “Single-Shu nt T h re e- Ph as e C u rr e nt Rec o ns truction
Algorithm for Sensorless FOC of a PMSM”.

Topics covered include:

• Operating Requirements

• dsPICDEM MCLV-2 Development Board Setup

3.1 OPERATING REQUIREMENTS

To set up and run the board, the following items are recommended:

• MPLAB
attached to the board (SW007002)

• dsPICDEM MCLV-2 Development Board (DM330021-2)

• 24V power supply (AC002013) or equivalent

• 10 pole Hurst motor (AC300020)

• dsPIC33EP256MC506 Internal Op Amp Configuration PIM (MA330031)

®

X Integrated Development Environment (IDE) installed on the PC that is

 2012 Microchip Technology Inc. DS52080A-page 27

dsPICDEM™ MCLV-2 Development Board User’s Guide

3.2 dsPICDEM MCLV-2 DEVE LOPMENT BOARD SETUP

The following procedure describes how to set up the dsPICDEM MCL V-2 Development
Board:

WARNING

The dsPICDEM MCLV-2 Development Board is intended to drive the three-phase
BLDC or PMSM motor. Before connecting the motor, make sure that the power rating
of the motor is equal to or less than the power rating of the board, as shown in Appen-

dix B. “Electrical Specifications”. Also, make sure the jumper settings are correct

for the firmware programmed into the target dsPIC DSC or PIC24 MCU mounted on
the socket. Failure to comply with this warning could lead to malfunction of the board
and the motor, and could result in physical harm.

Before beginning the start-up procedure, complete a visual check of the board and
the motor for connectivity and mechanical damage. If damage is found, DO NOT
power-up the board. Otherwise, you may further damage the equipment. Contact the
Microchip local office or distributor before using a damaged board.

3.2.1 Setting up the dsPICDEM MCLV-2 Development Board

Perform the following steps to set up the development board:

1. Place the dsPICDEM MCLV-2 Development Board on a sturdy insulated
platform.

2. Make sure that the dsPIC33EP256MC506 Internal Op Amp Configuration PIM is
mounted in the U9 socket.

3. Insert the Internal Op Amp Configuration matrix board into J14, ensuring that the
pins line up and the matrix board is oriented correctly, as shown in Figure 3-1.

FIGURE 3-1: MATRIX BOARD ORIENTATION

4. Connect MPLAB ICD 3 or MPLAB REAL ICE In-Circuit Emulator to the computer,
and the board in J11 or J12.

5. Connect the three-phase, 10 pole, 24V Hurst motor (AC300020) to J7. Since this
is a sensorless algorithm, the motor phase wires (Red, Black, and White) can be
connected to M1, M2, and M3 in any order.

DS52080A-page 28  2012 Microchip Technology Inc.

Running a BLDC Motor Using a Sensorless Algorithm

6. Connect the 24V power supply to J2 or BP1-BP2. If the supply voltage is not

equal to 24V, refer to Table 2-5 to configure the power supply for the board.

7. Download the internal op amp version of the code for the dsPIC33EP256MC506

from the Microchip web site (www.microchip.com). It is available with the
AN1299 application note.

8. Unzip the file and open the project using MPLAB X IDE. Refer to the “MPLAB

X IDE User’s Guide” (DS52027) for more information about how to use MPLAB X
IDE with a Microchip debugger/programmer.

9. Click the Run Project icon on the MPLAB X IDE toolbar. MPLAB X IDE will build

the project and program the target device. Ensure that the build and program
process completes successfully.

10. Press S2 to run the motor.

11. Vary the motor’s speed with POT1.

12. Press S2 again to stop the motor.

Note: For more information on running BLDC motors using a dsPIC DSC or

PIC24 MCU, refer to the following application notes, which are available
from the Microchip web site:

• AN1299, “Single-Shunt Three-Phase Current Reconstruction Algorithm

for Sensorless FOC of a PMSM” (DS01299)

• AN1160, “Sensorless BLDC Control with Back-EMF Filtering Using a

Majority Function” (DS0 1160)

• AN1078, “Sensorless Field Oriented Control of PMSM Motors using

dsPIC30F or dsPIC33F Digital Signal Controllers” (DS01078)

• AN1017, “Sinusoidal Control of PMSM Motors with dsPIC30F DSC”
(DS01017)

The source code referred in these application notes is available from the
Microchip web site (www.microchip.com).

®

 2012 Microchip Technology Inc. DS52080A-page 29

dsPICDEM™ MCLV-2 Development Board User’s Guide

NOTES:

DS52080A-page 30  2012 Microchip Technology Inc.

dsPICDEM™ MCLV-2 DEVELOPMENT

BOARD USER’S GUIDE

Appendix A. Schematics and Layout

The following schematics are included in this user’s guide:

™

Figure A-1: “dsPICDEM
Figure A-2: “dsPICDEM
Figure A-3: “dsPICDEM
Figure A-4: “dsPICDEM
Figure A-5: “dsPICDEM
Figure A-6: “dsPICDEM
Figure A-7: “dsPICDEM
Figure A-8: “Internal Op amp Configuration Matrix Board Schematic”
Figure A-9: “External Op amp Configuration Matrix Board Schematic”
Figure A-10: “dsPICDEM

MCLV-2 Development Board Schematic (Sheet 1 of 7)”

™

MCLV-2 Development Board Schematic (Sheet 2 of 7)”

™

MCLV-2 Development Board Schematic (Sheet 3 of 7)”

™

MCLV-2 Development Board Schematic (Sheet 4 of 7)”

™

MCLV-2 Development Board Schematic (Sheet 5 of 7)”

™

MCLV-2 Development Board Schematic (Sheet 6 of 7)”

™

MCLV-2 Development Board Schematic (Sheet 7 of 7)”

™

MCLV-2 Development Board Layout”

 2012 Microchip Technology Inc. DS52080A-page 31

DS52080A-page 32  2012 Microchip Technology Inc.

D17

YELLOW

D2

YELLOW

23

20

17

14

11

8

5

2

28

31

34

37

40

43

46

49

24

25

18

19

21

22

12

13

15

16

6

7

9

10

1

3

4

26

27

29

30

32

33

35

36

38

39

41

42

44

45

47

48

50

J14

U9

100-pin PIM Header

Note: For pin descriptions, please see Table 2-1, “dsPICDEM MCLV-2 Development Board PIM Pinout Functionality,” on pag e 18.

FIGURE A-1: dsP ICDE M™ MCLV-2 DEVELOPMENT BOARD SCHEMATIC (SHEET 1 OF 7)

dsPICDEM™ MCLV-2 Development Board User’s Guide

 2012 Microchip Technology Inc. DS52080A -page 33

14

13

12

D

5

6

7

B

8

9

10

C

1

2

3

A

Note 1: All resistors on this page must be 1%.

2: Supply Voltage should be AVDD for MCP6024.

FIGURE A-2: dsPICDE M™ MCLV-2 DEVELOPMENT BOARD SCHEMATIC (SHEET 2 OF 7)

Schematics and Layout

DS52080A-page 34  2012 Microchip Technology Inc.

470uF

C53

2

LIN

7

HO

4

LO

1

HIN

3

COM

5

VCC

8

VB

6

VS

2

LIN

7

HO

4

LO

1

HIN

3

COM

5

VCC

8

VB

6

VS

2

LIN

7

HO

4

LO

1

HIN

3

COM

5

VCC

8

VB

6

VS

FIGURE A-3: dsPICDE M™ MCLV-2 DEVELOPMENT BOARD SCHEMATIC (SHEET 3 OF 7)

dsPICDEM™ MCLV-2 Development Board User’s Guide

 2012 Microchip Technology Inc. DS52080A -page 35

FIGURE A-4: dsPICDE M™ MCLV-2 DEVELOPMENT BOARD SCHEMATIC (SHEET 4 OF 7)

Schematics and Layout

DS52080A-page 36  2012 Microchip Technology Inc.

FIGURE A-5: dsPICDE M™ MCLV-2 DEVELOPMENT BOARD SCHEMATIC (SHEET 5 OF 7)

dsPICDEM™ MCLV-2 Development Board User’s Guide

 2012 Microchip Technology Inc. DS52080A -page 37

FIGURE A-6: dsPICDE M™ MCLV-2 DEVELOPMENT BOARD SCHEMATIC (SHEET 6 OF 7)

Schematics and Layout

DS52080A-page 38  2012 Microchip Technology Inc.

FIGURE A-7: dsPICDE M™ MCLV-2 DEVELOPMENT BOARD SCHEMATIC (SHEET 7 OF 7)

dsPICDEM™ MCLV-2 Development Board User’s Guide

Schematics and Layout

SHUNT_HIGH_SUM

1

SHUNT_LOW_SUM

2

SHUNT_HIGH_1

3

SHUNT_HIGH_2

4

5

6

7

REC_NEUTR

8

MONITOR_1

9

MONITOR_2

10

MONITOR_3

11

VBUS

12

IMOTOR_SUM

13

IMOTOR1

14

IMOTOR2

15

POT

16

17

18

19

20

21

22

V_M1

23

V_M2

24

V_M3

25

PIM_V_M3

26

PIM_V_M2

27

PIM_V_M1

28

PIM_GEN2

29

PIM_GEN1

30

31

32

PIM_FLT_OUT2

33

PIM_FLT_OUT1

34

PIM_POT

35

PIM_IMOTOR2

36

PIM_IMOTOR1

37

PIM_IMOTOR_SUM

38

PIM_VBUS

39

PIM_MONITOR_3

40

PIM_MONITOR_2

41

PIM_MONITOR_1

42

PIM_REC_NEUTR

43

44

45

46

PIM_IB+

47

PIM_IA+

48

PIM_IBUS-

49

PIM_IBUS+

50

Matrix Board Header MCLV

FIGURE A-8: INTERNAL OP AMP CONFIGURATION MATRIX BOARD SCHEMATIC

 2012 Microchip Technology Inc. DS52080A-page 39

dsPICDEM™ MCLV-2 Development Board User’s Guide

SHUNT_HIGH_SUM

1

SHUNT_LOW_SUM

2

SHUNT_HIGH_1

3

SHUNT_HIGH_2

4

5

6

7

REC_NEUTR

8

MONITOR_1

9

MONITOR_2

10

MONITOR_3

11

VBUS

12

IMOTOR_SUM

13

IMOTOR1

14

IMOTOR2

15

POT

16

17

18

19

20

21

22

V_M1

23

V_M2

24

V_M3

25

PIM_V_M3

26

PIM_V_M2

27

PIM_V_M1

28

PIM_GEN2

29

PIM_GEN1

30

31

32

PIM_FLT_OUT2

33

PIM_FLT_OUT1

34

PIM_POT

35

PIM_IMOTOR2

36

PIM_IMOTOR1

37

PIM_IMOTOR_SUM

38

PIM_VBUS

39

PIM_MONITOR_3

40

PIM_MONITOR_2

41

PIM_MONITOR_1

42

PIM_REC_NEUTR

43

44

45

46

PIM_IB+

47

PIM_IA+

48

PIM_IBUS-

49

PIM_IBUS+

50

Matrix Board Header MCLV

FIGURE A-9: EXTERNAL OP AMP CONFIGURATION MATRIX BOARD SCHEMATIC

DS52080A-page 40  2012 Microchip Technology Inc.

Schematics and Layout

TM





FIGURE A-10: dsP ICDE M™ MCLV-2 DEVELOPMENT BOARD LAYOUT

 2012 Microchip Technology Inc. DS52080A-page 41

dsPICDEM™ MCLV-2 Development Board User’s Guide

NOTES:

DS52080A-page 42  2012 Microchip Technology Inc.

dsPICDEM™ MCLV-2 DEVELOPMENT

BOARD USER’S GUIDE

Appendix B. Electrical Specifications

TABLE B-1: DC INPUT RATING

Parameter Condition Min. Max. Unit

Power supply connected to J7 J6 is open 0 48 V
Power supply connected to J2

or BP1-BP2
Power supply connected to J2

or BP1-BP2

TABLE B-2: DC OUTPUT RATING

Parameter Min. Typical Max. Unit

Voltage 0 24 48 V
Current 0 10 15 A
Power Rating 0 240
Note 1: If the output power exceeds 240W, the power MOSFETs (Q1-Q6) may need an

additional heat sink.

2: By default, the board uses D

packages. If the TO-220 Power MOSFETs are used, additional heat sink can be
mounted on the MOSFETs, if required.

J3 is open and VR3 is
installed

J3 is installed and VR3
is removed

(1)

2

PAK Power MOSFETs. It also supports the TO-220

16 24 VDC

10 16 VDC

(2)

720

DC

Watts

DC

 2012 Microchip Technology Inc. DS52080A-page 43

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Tel: [phone]
Fax: [phone]

Taiwan - Kaohsiung

Tel: [phone]
Fax: [phone]

Taiwan - Taipei

Tel: [phone]
Fax: [phone]

Thailand - Bangkok

Tel: [phone]
Fax: [phone]

EUROPE

Austria - Wels

Tel: [phone]
Fax: [phone]

Denmark - Copenhagen

Tel: [phone]
Fax: [phone]

France - Paris

Tel: [phone]
Fax: [phone]

Germany - Munich

Tel: [phone]
Fax: [phone]

Italy - Milan

Tel: [phone]
Fax: [phone]

Netherlands - Drunen

Tel: [phone]
Fax: [phone]

Spain - Madrid

Tel: [phone]
Fax: [phone]

UK - Wokingham

Tel: [phone]
Fax: [phone]

11/29/11

DS52080A-page 44  2012 Microchip Technology Inc.