48V/10A High Frequency PWM 3-Phase GaN Inverter Reference Design for High-Speed Drives
TIDA-00909
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Key Document

Description

Low voltage, high-speed drives and/or 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 that by using a 3-phase inverter with three 80V/10A half-bridge GaN power modules LMG5200 and uses shunt based phase current sensing. Gallium nitride (GaN) transistors can switch much faster than silicon FETs and integrating the GaN FET and driver in the same package reduces parasitic inductances and optimizes switching performance reducing losses, thus allowing to down-size or eliminate the heatsink. The TIDA-00909 offers a TI BoosterPack compatible interface to connect to a C2000 MCU LaunchPad™ development kit for easy performance evaluation.

Features
  • 3-phase GaN inverter with wide input voltage range 12V to 60V and 7Arms/10Apeak 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 ease PCB layout and reduce parasitic inductances for optimized switching performance, less than 2ns rise/fall time.
  • Very low switch node voltage over- and undershoot with very low 12.5ns dead band minimize phase voltage ringing, as well as reduce phase voltage distortions and EMI.
  • Precision shunt-based phase current sensing with high accuracy (0.1%).
  • TI BoosterPack compatible interface with 3.3V I/O for easy performance evaluation with a C2000 MCU LaunchPad™ development kit.

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA240  80V, Low-/High-Side, Bi-Directional, Zero-Drift, Current Sense Amp w/Enhanced PWM Rejection  Current sense amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LM5018  7.5-100V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
LMG5200  80V GaN Half Bridge Power Stage  Power management  Sample & Buy View Design Kits & Evaluation Modules
LP38691  500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors  Power management  Sample & Buy Not Available
REF3333  30ppm/°C Drift, 3.9µA, SOT23-3, SC70-3, UQFN-8 Voltage Reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
SN74AVC8T245  8-Bit Dual-Supply Bus Transceiver with Configurable Voltage-Level Shifting and 3-State Outputs  Voltage level translation  Sample & Buy View Design Kits & Evaluation Modules
TMP302-Q1  Automotive, Pin-Selectable Trip Point 1.4V-Capable Family of Temperature Switches  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
INA240 Download
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LM5018 Download Download
Download Download
LMG5200 Download -
LP38691 Download Download
Download Download
REF3333 Download Download
Download Download
Download
SN74AVC8T245 Download Download
Download Download
Download Download
TMP302-Q1 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 8383 03 Apr 2017
Design files (6)
Title Type Size (KB) Date
ZIP 1218 04 Nov 2016
ZIP 5846 04 Nov 2016
PDF 2813 04 Nov 2016
PDF 554 04 Nov 2016
PDF 72 04 Nov 2016
PDF 829 04 Nov 2016
Related Tools & Software

Reference Designs  ( 1 )

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
C2000 Piccolo MCU F28069M LaunchPad™ development kit  LAUNCHXL-F28069M  Evaluation Modules & Boards 

Software (1)



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