Freescale Semiconductor 33395 User manual

ANALOG ICs
33395 EVALUATION
MOTOR BOARD
DESIGNER REFERENCE
MANUAL
MC33395RM
Rev. 2
05/2003
Communicate
Control
Protect
Power
EMBEDDED MOTION CONTROL

DRM33395 Designer Reference Manual 33395EvaluationMotorBoard

33395 Evaluation Motor Board DRM33395 Designer Reference Manual
List of Sections 1
33395 Evaluation Motor Board
List of Sections
Section 1. Introduction and Setup .................................... 9
Section 2. Operational Description ................................. 15
Section 3. Pin Descriptions..............................................17
Section 4. Schematics and Parts List ............................. 25
Section 5. Design Considerations .................................. 37

DRM33395 Designer Reference Manual 33395 Evaluation Motor Board
2 List of Sections
List of Sections

33395 Evaluation Motor Board DRM33395 Designer Reference Manual
Table of Contents 3
33395 Evaluation Motor Board
Table of Contents
Section 1. Introduction and Setup
1.1 Contents .....................................................................................9
1.2 SMOS EVM Motor Board Introduction........................................9
1.3 About This Manual......................................................................9
1.4 Warnings ..................................................................................12
1.5 Setup Guide..............................................................................13
Section 2. Operational Description
2.1 Contents ...................................................................................15
2.2 Introduction...............................................................................15
2.3 Electrical Characteristics ..........................................................16
Section 3. Pin Descriptions
3.1 Contents ...................................................................................17
3.2 Introduction ...............................................................................17
3.3 Signal Descriptions...................................................................19
3.3.1 Power Connectors J3 and JP4............................................19
3.3.2 40-Pin Ribbon Connector J1 ...............................................19
3.3.3 Output Connectors: J2, J4, FASTONS (J5, J7, J8)............. 22
3.3.4 Jumpers and Switch/Push Button: M0, M1, PWM, SW1.....22
3.3.5 Test Points ..........................................................................24

DRM33395 Designer Reference Manual 33395 Evaluation Motor Board
4 Table of Contents
Table of Contents
Section 4. Schematics and Parts List
4.1 Contents ...................................................................................25
4.2 Overview...................................................................................25
4.3 Schematics ...............................................................................25
4.4 Parts List...................................................................................32
Section 5. Design Considerations
5.1 Contents ...................................................................................37
5.2 Overview...................................................................................37
5.3 3-Phase H-Bridge .....................................................................37
5.4 Bus Voltage and Current Feedback Signals.............................38
5.5 Back-EMF Signals ....................................................................40
5.6 Brake Control............................................................................41

33395 Evaluation Motor Board DRM33395 Designer Reference Manual
List of Figures 5
33395 Evaluation Motor Board
List of Figures
Figure Title Page
1-1 System Configurations..............................................................10
1-2 SMOS EVM Motor Board ver. 140A01 .....................................11
1-3 SMOS EVM Motor Board Setup ...............................................14
3-1 40-Pin Input Connector J1 ........................................................18
4-1 SMOS EVM Motor Board ver. 140A01 Overview ....................26
4-1a SMOS EVM Motor Board ver. 140A02 Overview ....................27
4-2 3-Phase H-Bridge with Gate Driver ..........................................28
4-3 Current Feedback Circuits ........................................................29
4-4 Back-EMF Signals .................................................................... 30
4-5 Brake Control............................................................................31
4-6 Brushless DC Motor Connections - Schematic View................31
5-1 Phase Current and DC Bus Voltage Sensing ...........................39
5-2 Reconstructed Bus Current ......................................................40
5-3 Phase C Back-EMF Feedback .................................................40

DRM33395 Designer Reference Manual 33395 Evaluation Motor Board
6 List of Figures
List of Figures

33395 Evaluation Motor Board DRM33395 Designer Reference Manual
List of Tables 7
33395 Evaluation Motor Board
List of Tables
Table Title Page
2-1 Electrical Characteristics ..........................................................16
3-1 Connector J1 Signal Descriptions ............................................19
3-2 Connectors J2 and J4 Signal Descriptions...............................22
3-3 Driver Jumper Groups for Operating Mode ..............................22
3-4 Gate Driver PWM Signal Selection ...........................................23
3-5 Test Points ...............................................................................24
4-1 Parts List...................................................................................32

DRM33395 Designer Reference Manual 33395 Evaluation Motor Board
8 List of Tables
List of Tables