Texas Instruments: DRV8312-C2-KIT Three Phase BLDC Motor Kit with DRV8312 and Piccolo MCU

atomar — Wed, 25 Jun 2014 00:52:53 GMT

Current Revision posted to Documents by atomar on 6/25/2014 12:52:53 AM

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Kit Overview

The Texas Instruments DRV8312-C2-KITDRV8312-C2-KIT is a motor control evaluation kit for spinning three-phase brushless DC (BLDC) and brushless AC (BLAC) - often referred to as permanent magnet synchronous (PMSM) - motors. The DRV8312-C2-KITDRV8312-C2-KIT is a high-performance, power-efficient, cost-effective sensorless field-oriented control (FOC) and sensored/sensorless trapezoidal commutation platform that speeds development for quicker time to market.

The DRV8312DRV8312 are high performance, integrated three phase motor drivers with an advanced protection system. Because of the low R_DS(on) of the power MOSFETs and intelligent gate drive design, the efficiency of these motor drivers can be up to 97%, which enables the use of smaller power supplies and heatsinks, and are good candidates for energy efficient applications.

The DRV8312DRV8312 require two power supplies, one at 12V for GVDD and VDD, and another up to 50 V for PVDD. The DRV8312 can operate at up to 500-kHz switching frequency while still maintain precise control and high efficiency. They also have an innovative protection system safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short-circuit protection, overcurrent protection, undervoltage protection, and two-stage thermal protection.

The DRV8312DRV8312 have a current-limiting circuit that prevents device shutdown during load transients such as motor start-up. A programmable overcurrent detector allows adjustable current limit and protection level to meet different motor requirements.

The DRV8312DRV8312 have unique independent supply and ground pins for each half bridge, which makes it possible to provide current measurement through external shunt resistor and support half bridge drivers with different power supply voltage requirements.

Key Applications: Applications include sub-50-V and 7-A brushless motors for driving medical pumps, gates, lifts and small pumps, as well as industrial and consumer robotics and automation.

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Technical Documents

Learning Center

Type	Description
User Manual	TI: User Manual for Stellaris DK-LM3S-DRV8312 Development Kit
Datasheet	TI: Data Sheet for DRV8312 - Three Phase PWM Motor Driver
Datasheet	TI: Datasheet for TMS320F28027/28026/28023/28022/28021/28020/280200 Piccolo Microcontrollers (Rev. I)
Solution Guide	TI: Solution Guide for TI Spins Motors
Product Brief	TI: Product Brief for Industrial Automation Solutions Motor Drive and Control
Application Note	TI: Application Note for InstaSPIN BLDC Lab

Design Elements

Type	Description
Simulation Model	TI: F28020, F28021, F28022, F28023, F28026, F28027 DA IBIS Model
Simulation Model	TI: F28020, F28021, F28022, F28023, F28026, F28027 PT IBIS Model
CAD Model	TI: CAD Model for DRV8312

Video

Video 1	Video 2
www.youtube.com/watch	www.youtube.com/watch

Kit Features

Three-Phase Power Stage, DRV8312DRV8312 capable of driving three-phase brushless DC motors and Permanent Magnet Synchronous Motors
- 52.5 V DC max input voltage
- 6.5 A peak with a 3.5 A max continuous output current per phase
- Up to 500 khz driver switching frequency
24 V switching power supply with on-board regulation for powering other analog and digital circuitry
Isolated CAN and SPI communication (controlCARD support-dependent)
Closed-loop digital control with feedback using the Stellaris microcontroller’s on-chip PWM and ADC peripherals
JTAG connector for external emulators (not used with Stellaris microcontrollers)
Quadrature Encoder Interface (QEI) available for speed and position measurement
Hall-Sensor Interface for sensored three-phase motor control
High precision, low-side current sensing using the Stellaris microcontroller’s high-performance ADC, Texas Instruments’ OPA365AOPA365A high-speed op-amps, and Texas
Instruments’ REF3025REF3025 high precision voltage reference chip
Three PWM DACs generated by low-pass filtering the PWM signals to observe the system variables on an oscilloscope to enable easy debug of control algorithms
Over-current protection on the inverter stage, DRV8312

Kit Contents

The Texas Instruments DRV8312-C2-KITDRV8312-C2-KIT Three Phase BLDC Motor Kit is supplied with below contents:

1 NEMA17 BLDC/PMSM 55W Motor
24V wall power supply (with adapters)
DRV8312 baseboard with controlCARD slot
Piccolo Isolated F28035 controlCARD
USB Cable
- USB Stick with GUI, CCStudie IDE, Quick Start Guide, and link to controlSUITE for all documentation

Tags: drv8312, drv8312-c2-kit, texas_instruments, piccolo