Texas Instruments LM5018 | Demoboard TIDA-00909

Description

Low-voltage, high-speed drives and low-inductance brushless motors require higher inverter switching frequencies in the range of 40 kHz to 100 kHz to minimize losses and torque ripple in the motor. The TIDA-00909 reference design achieves this by using a three-phase inverter with three 80 V, 10-A half-bridge GaN power modules (LMG5200) and uses shuntbased phase-current sensing. Gallium nitride (GaN) transistors can switch much faster than silicon fieldeffect transistors (FETs) and integrating the GaN FET and driver in the same package reduces parasitic inductances and optimizes switching performance to reduce losses, thus allowing the designer to downsize or eliminate the heatsink. The TIDA-00909 offers a TI BoosterPack™ Plug-in Module with a compatible interface to connect to a C2000™ MCU LaunchPad™ Development Kit for easy performance evaluation

Features

• Three-Phase GaN Inverter With Wide-Input Voltage
• Range 12 V to 60 V and 7 ARMS per 10-A Peak
• Output Current; Tested up to 100-kHz PWM
• GaN Power Stage With Greatly-Reduced Switching
• Losses Allows High PWM Switching Frequencies
• With Peak Efficiency up to 98.5% at 100-kHz PWM
• LMG5200 GaN Half-Bridge Power Stage Simplifies
• PCB Layout and Reduces Parasitic Inductances for
• Optimized Switching Performance; Less than 2-ns
• Rise and Fall Time
• Very-Low Switch Node Voltage Overshoot and
• Undershoot With Very-Low 12.5-ns Deadband
• Minimizes Phase-Voltage Ringing and reduces
• Phase-Voltage Distortions and EMI
• Precision Shunt-Based, Phase-Current Sensing
• With High Accuracy (0.1%)
• TI BoosterPack™ Compatible Interface With 3.3-V
• I/O for Easy Performance Evaluation With C2000™
• MCU LaunchPad™ Development Kit

Typical applications

• Servo Drives and Motion Control,Manufacturing Robots,Service Robots
• Non-Military Drones
• Computer Numerical Control (CNC) Drives

More information

• Datasheet