DRV3204EVM

User's Guide SLVU844 – February 2013 DRV3204-Q1 EVM This document is a supplement to the DRV3204-Q1 data sheet (SLVSBT3). It details the hardware implementation of DRV3204-Q1 evaluation module (EVM). This document does not cover the motor-driver application and the software. Section 1 and Section 2 list the hardware descriptions of the EVM. Appendix A details getting started with the evaluation, and Appendix B describes the 3.3-V interface (I/F) board. Contents 1 Overview ..................................................................................................................... 2 Connectors and Switches .................................................................................................. Appendix A Application Evaluation ............................................................................................. Appendix B I/F Board ............................................................................................................ 1 4 7 9 List of Figures 1 DRV3204EVM Board Layout (Front Side) ............................................................................... 2 2 DRV3204EVM Board Layout (Back Side) ............................................................................... 2 3 DRV3204EVM Block Diagram............................................................................................. 3 4 Device Enable Switch ...................................................................................................... 5 5 Watchdog Disable Switch .................................................................................................. 5 6 Example of Evaluation Environment...................................................................................... 7 7 EVM Block Diagram ........................................................................................................ 7 8 TI Code Composer Studio Screen Capture ............................................................................. 8 9 Board Layout (Front Side) ................................................................................................. 9 10 Board Layout (Back Side).................................................................................................. 9 List of Tables 1 Power Connectors .......................................................................................................... 4 2 Motor Outputs ............................................................................................................... 4 3 Analog and Digital I/O ...................................................................................................... 4 4 Device Enable Switch ...................................................................................................... 5 5 Watchdog Disable Switch .................................................................................................. 6 6 Debugging Environment Example ........................................................................................ 7 7 VCC Output Connector ..................................................................................................... 9 8 3.3-V Analog and Digital I/O ............................................................................................. 10 1 Overview 1.1 Introduction The DRV3204EVM is an application board to evaluate the DRV3204-Q1 device. The DRV3204-Q1 device is a field effect transistor (FET) pre-driver designed for a 3-phase brushless DC motor control. The EVM consists of the DRV3204-Q1 device, six N-channel MOSFETs, and passive devices. The DRV3204EVM has a 5-V level interface to communicate with an external micro-controller unit (MCU). A 3.3-V I/F board is also provided to support the 3.3-V MCU. SLVU844 – February 2013 Submit Documentation Feedback DRV3204-Q1 EVM Copyright © 2013, Texas Instruments Incorporated 1 Overview 1.2 www.ti.com Block Diagram SW2 : Watchdog Disable Switch SW1 : Device Enable Switch LED : Power Status CN1 : Power Connecter CN2 : Motor Output CN3 : Analog and Digital I/Os Figure 1. DRV3204EVM Board Layout (Front Side) PNP Transistor for VCC FETs Figure 2. DRV3204EVM Board Layout (Back Side) 2 DRV3204-Q1 EVM SLVU844 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Overview www.ti.com Test Pins Switch LED Power Connector DRV3204 J1 Motor Driver Figure 3. DRV3204EVM Block Diagram 1.2.1 Power and Communication Connectors The EVM offers terminal blocks for the application of power and motor outputs, as well as digital input/output (I/O) and communication. This section briefly describes the functions. The pin assignments are described in Section 2. 1.2.1.1 Power Connector The VB power rail (typically 12 V) must be externally supplied. The power for the external MCU and other analog and digital functions are supplied by the regulator implemented in the DRV3204-Q1 device. 1.2.1.2 Motor Outputs A brushless DC Motor is connected to the EVM through the motor outputs. 1.2.1.3 Analog and Digital I/O The analog and digital I/O and SPI communication of the DRV3204-Q1 can be used through the connector. 1.2.2 LED The LED turns on when the DRV3204EVM power is supplied. 1.2.3 Switch Switch1 is connected to the enable input (ENABLE) pin of the DRV3204-Q1. DRV3204-Q1 is enabled by turning this switch ON. Switch3 is for disabling the watchdog function. When you want to disable the watchdog function, this switch must be set to the RES position. 1.2.4 FETs Six N-channel MOSFETs are implemented on the board to drive the brushless DC motor. A 10-A maximum brushless DC motor can be evaluated using this EVM board. SLVU844 – February 2013 Submit Documentation Feedback DRV3204-Q1 EVM Copyright © 2013, Texas Instruments Incorporated 3 Connectors and Switches 1.2.5 www.ti.com Test Pins The DRV3204-Q1 pins are brought out to the test pin or test through-hole. For each test pin, a label on the silkscreen identifies the signal. Access the signals by using 14 through-holes, marked as J1. 2 Connectors and Switches This section describes the pin assignment of the connectors and switches. 2.1 2.1.1 Connectors CN1 – B3P-VH-FB-B(LF)(SN) (JST) Table 1. Power Connectors Pin# 2.1.2 Name Description 1 VB External power supply (typ 12-V, max 10 A) 2 NC No connection 3 GND Base ground (B-GND) CN2 – B5P-VH-FB-B(LF)(SN) (JST) Table 2. Motor Outputs 2.1.3 Pin# Name Description 1 Motor1 Motor terminal 1 2 NC 3 Motor2 4 NC 5 Motor3 No Connection Motor terminal 2 No Connection Motor terminal 3 CN3 – FCN-365J032-AU (Fujitsu Component) Table 3. Analog and Digital I/O 4 Pin# Name Description A1 PMV1 Phase comparator output 1 B1 PMV2 Phase comparator output 2 A2 PMV3 Phase comparator output 3 B2 PSS1 Sample and hold control signal input 1 (not used) A3 PSS2 Sample and hold control signal input 2 (not used) B3 PSS3 Sample and hold control signal input 3 (not used) A4 CS B4 DOUT SPI chip select signal input SPI data signal output A5 SCK SPI clock signal input B5 DIN SPI data signal input A6 CTLEN Pre-driver parallel enable input (not used) B6 CTLWL Pre-driver parallel input A7 CTLWH Pre-driver parallel input B7 CTLVL Pre-driver parallel input A8 CTLVH Pre-driver parallel input B8 CTLUL Pre-driver parallel input DRV3204-Q1 EVM SLVU844 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Connectors and Switches www.ti.com Table 3. Analog and Digital I/O (continued) 2.2 2.2.1 Pin# Name A9 CTLUH Description Pre-driver parallel input B9 RES Reset output A10 PRN Watchdog timer pulse input B10 FAULT Diagnosis output A11 OVCR Overcurrent reset input (not used) B11 NC A12 CANRX No connection CAN digital receive data output (not used) B12 CANTX CAN digital transmit data input (not used) A13 NC No Connection B13 PTV1 Phase output 1 A14 PTV2 Phase output 2 B14 PTV3 Phase output 3 A15 GND Ground B15 ALV Motor current sense amp output A16 GND Ground B16 VCC 5-V VCC supply output Switches SW1 EVM ON SW OFF Figure 4. Device Enable Switch Table 4. Device Enable Switch 2.2.2 Switch Description ON DRV3204 ENABLE = VB DRV3204-Q1 is enabled OFF DRV3204 ENABLE = OPEN DRV3204-Q1 is disabled SW2 EVM SW2 RES PRN Figure 5. Watchdog Disable Switch SLVU844 – February 2013 Submit Documentation Feedback DRV3204-Q1 EVM Copyright © 2013, Texas Instruments Incorporated 5 Connectors and Switches www.ti.com Table 5. Watchdog Disable Switch 6 Switch Description PRN Watchdog function is enabled. It is controlled through the CN3 by MCU. RES Watchdog function is disabled. DRV3204-Q1 EVM SLVU844 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated www.ti.com Appendix A Application Evaluation This section gives an overview of an application evaluation environment. It uses an F28035 (C2000) Control Card and TI Code Composer Studio (CCS) to control and monitor the DRV3204-Q1 and motordriver application. A.1 Example of Evaluation Environment Figure 6 shows a typical environment to evaluate the brushless DC motor system, Figure 7 shows the block diagram, and Table 6 lists the components. I/F Board DRV3204EVM Control Card Motor (F28035) Figure 6. Example of Evaluation Environment TI Code Composer Studio (CCS) Figure 7. EVM Block Diagram Table 6. Debugging Environment Example Component Description CCS CCS is the integrated development environment (IDE) for TI’s micro-controllers. It provides a compiler of the user’s code, a source code editor, a project build environment and real-time debugger. SLVU844 – February 2013 Submit Documentation Feedback Application Evaluation Copyright © 2013, Texas Instruments Incorporated 7 Example of Evaluation Environment www.ti.com Table 6. Debugging Environment Example (continued) Component Description Control CARD The Piccolo F28035 Control CARD is a TI 32-bit CPU suitable for motor-driver or power management applications. I/F board The I/F board converts the I/O voltage level between the Control CARD (3.3 V) and the DRV3204EVM (5 V). MOTOR A 3-phase brushless DC motor Power supply A 12-V power supply to EVM board Real Time Debug Commutation Pointer AD Converted Data Figure 8. TI Code Composer Studio Screen Capture The TI CCS offers real-time debugging with a C2000 MCU. It controls C2000 parameters or displays a motor-control status. 8 Application Evaluation SLVU844 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated www.ti.com Appendix B I/F Board B.1 I/F Board Overview CN4 : 3.3-V Analog and Digital I/Os Level Shifters : 3.3 V ó 5.0 V CN5 : VCC Output Connector CN3 : 5-V Analog and Digital I/Os CN2 : VCC Output Connector Figure 9. Board Layout (Front Side) 3.3-V Regulator Figure 10. Board Layout (Back Side) B.2 B.2.1 Connectors CN1 Not used B.2.2 CN2 and CN5 – B3B-XH-A(LF)(SN) (JST) CN2 and CN5 are 5-V power supplies to components on the board or external devices. Table 7. VCC Output Connector B.2.3 Pin# Name Description 1 VCC VCC power supply output 2 NC No connection 3 GND Ground CN3 – FCN-365P032-AU (Fujitsu Component) CN3 is a 5-V voltage level I/F connector, and It is connected on the DRV3204EVM. Refer to Table 3. SLVU844 – February 2013 Submit Documentation Feedback I/F Board Copyright © 2013, Texas Instruments Incorporated 9 Connectors B.2.4 www.ti.com CN4 – XG4C-3031 (omrom) CN4 is a 3.3-V voltage level I/F connector, and it is used on the C2000 Control CARD. Table 8. 3.3-V Analog and Digital I/O 10 Pin# Name Description 1 GND Ground 2 ISCOMP Current comparator output 3 ALV Motor current sense amp output 4 PTV3 Phase amplifier output 3 5 PTV2 Phase amplifier output 2 6 PTV1 Phase amplifier output 1 7 NC No connection 8 PRN Pulse input 9 CTLUH Pre-driver parallel input 10 CTLUL Pre-driver parallel input 11 CTLVH Pre-driver parallel input 12 CTLVL Pre-driver parallel input 13 CTLWH Pre-driver parallel input 14 CTLWL Pre-driver parallel input 15 CTLEN Pre-driver parallel enable input 16 DIN SPI data signal input 17 SCK SPI clock signal input 18 CS SPI chip select signal input 19 PSS3 Sample and hold control signal input 3 (not used) 20 PSS2 Sample and hold control signal input 2 (not used) 21 PSS1 Sample and hold control signal input 1 (not used) 22 OVCR Overcurrent reset input (not used) 23 CANTX CAN digital input (not used) 24 CANRX CAN digital output (not used) 25 FAULT Diagnosis output 26 RES Reset output 27 DOUT SPI data signal output 28 PMV3 Phase comparator output 3 29 PMV2 Phase comparator output 2 30 PMV1 Phase comparator output 1 I/F Board SLVU844 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods. Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. Please read the User's Guide and, specifically, the Warnings and Restrictions notice in the User's Guide prior to handling the product. This notice contains important safety information about temperatures and voltages. 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For EVMs not subject to the above rules, this evaluation board/kit/module is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES-003 rules, which are designed to provide reasonable protection against radio frequency interference. Operation of the equipment may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference. General Statement for EVMs including a radio User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally allocated frequency and power limits. Any use of radio frequencies and/or power availability of this EVM and its development application(s) must comply with local laws governing radio spectrum allocation and power limits for this evaluation module. It is the user’s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization. For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant Caution This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 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Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. For EVMs annotated as IC – INDUSTRY CANADA Compliant This Class A or B digital apparatus complies with Canadian ICES-003. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Concerning EVMs including radio transmitters This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concerning EVMs including detachable antennas Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. 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Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use. It is intended solely for use for preliminary feasibility evaluation in laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end product. Your Sole Responsibility and Risk. You acknowledge, represent and agree that: 1. 2. 3. 4. You have unique knowledge concerning Federal, State and local regulatory requirements (including but not limited to Food and Drug Administration regulations, if applicable) which relate to your products and which relate to your use (and/or that of your employees, affiliates, contractors or designees) of the EVM for evaluation, testing and other purposes. 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