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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 RDS(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
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 |
|---|---|
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