Overview
The DRV8313EVM is an evaluation module designed by Texas Instruments to provide a cost-effective, sensorless solution for controlling 3-phase Brushless DC (BLDC) motors in trapezoidal commutation. This module integrates all the necessary power and control blocks to constitute a typical motor drive system, making it an ideal tool for developers and engineers working on motor control applications.
The EVM features the DRV8313 three-phase PWM motor driver, along with an on-board MSP430G2553 microcontroller, and various other components such as current sense amplifiers, Hall effect sensor connections, and a USB interface for communication with a PC or laptop via a GUI.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Operating Supply Voltage Range | 8 to 60 | V |
| Peak Output Current per H-Bridge | 2.5 | A |
| Continuous Output Current per H-Bridge | 1.75 | A |
| PWM Signal Frequency Range | 0 to 250 | kHz |
| Operating Ambient Temperature Range | -40 to 125 | °C |
| Microcontroller | MSP430G2553 | |
| Package Type | HTSSOP (28-pin), VQFN (36-pin) | |
| Dimensions (HTSSOP) | 9.70 mm x 4.40 mm | |
| Dimensions (VQFN) | 6.00 mm x 6.00 mm |
Key Features
- Triple 1/2-H Bridge Driver: The DRV8313EVM includes the DRV8313 IC, which provides three individually controllable half-H-bridge drivers suitable for 3-phase BLDC motors, solenoids, and other loads.
- Sensorless Operation: The EVM supports sensorless commutation, allowing for the control of BLDC motors without the need for Hall effect sensors.
- High Current-Drive Capability: Each output driver channel can handle up to 2.5A peak current and 1.75A continuous current.
- On-Board Microcontroller: The MSP430G2553 microcontroller is integrated on the board, enabling stand-alone operation and communication via a USB interface.
- GUI Interface: A graphical user interface (GUI) is available for configuring and controlling the motor parameters, including speed, duty cycle, and fault clearing.
- Current Sensing and Protection: The board includes low-side shunt current sensing and built-in protection features such as undervoltage, overcurrent, short circuit, and overtemperature protection.
- Flexible Power Supply: The EVM can operate from a DC power supply input ranging from 8V to 60V.
- Additional Interfaces: The board features a 4-pin JTAG interface, a 16-pin connector for external microcontroller control, and optional Hall effect sensor connections.
Applications
- Camera Gimbals: The DRV8313EVM is suitable for controlling motors in camera gimbals due to its precise control and high current-drive capability.
- HVAC Motors: It can be used in heating, ventilation, and air conditioning systems to control motors efficiently.
- Office Automation Machines: The EVM is applicable in office automation equipment such as printers and scanners.
- Factory Automation and Robotics: It is ideal for use in industrial automation and robotics where precise motor control is required.
Q & A
- What is the operating supply voltage range of the DRV8313EVM?
The operating supply voltage range is from 8V to 60V.
- What is the peak output current per H-bridge of the DRV8313EVM?
The peak output current per H-bridge is 2.5A.
- Does the DRV8313EVM support sensorless operation?
- What microcontroller is integrated on the DRV8313EVM?
The MSP430G2553 microcontroller is integrated on the board.
- How does the DRV8313EVM protect against faults?
The board includes built-in protection features such as undervoltage, overcurrent, short circuit, and overtemperature protection.
- Can the DRV8313EVM be controlled using a GUI?
- What are the dimensions of the HTSSOP package of the DRV8313 IC?
The dimensions of the HTSSOP package are 9.70 mm x 4.40 mm.
- What are some common applications of the DRV8313EVM?
- How do you configure the jumpers on the DRV8313EVM?
The jumpers (JP1 and JP2) need to be configured according to the user's guide to select the 3.3V source and for normal operation or programming modes.
- Can the motor direction be reversed during runtime?
