In-phase current-sense reference design for 230-VAC motor drives using hall-effect current sensors
TIDA-010059
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Key Document

Description

This reference design features the Hall-effect current sensor, TMCS1100, that can measure currents with an absolute error of < 1% (–40 to 125°C) and provide a working isolation voltage of up to 600 V. The low-resistance in-package current sensing element and lack of need for high-side power supply enable a compact and efficient current sensing solution for precise motor torque, speed, or position control. The inverter power stage is comprised of 600-V LMG3411 Gallium Nitride (GaN) power modules enabling further size reduction and efficiency improvement for the next-generation of motor drives. 

Features
  • Accurate current sense (< 1% absolute error) enables precise motor control.
  • Accuracy stability over a wide temperature range eliminates the need for external offset or drift compensation.
  • In-package sense element, and a lack of need for high-side power supply enable a small footprint, low-cost current-sense system.
  • Efficient and compact inverter power stage is based on 600-V LMG3411 GaN power modules with integrated gate under-voltage, device overcurrent, and over-temperature protection.

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO7721  Robust EMC, dual-channel, 1/1, reinforced digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LMG3411R050  600-V 50mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
REF2030  3-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
TL431  Adjustable precision shunt regulator  Voltage references  Sample & Buy Not Available
TLV1117  800-mA, 15-V, linear voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV9001  1-Channel, 1MHz, RRIO, 1.8V to 5.5V Operational Amplifier for Cost-Optimized Systems  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TMCS1100  Precision isolated current sensor with external reference  Magnetic sensors  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ISO7721 Download Download
Download Download
Download Download
LMG3411R050 Download
REF2030 Download -
TL431 Download Download
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Download -
Download Download
Download Download
Download Download
Download Download
Download -
Download Download
TLV1117 Download Download
Download
Download -
Download Download
Download Download
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TLV9001 Download -
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Download
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TMCS1100 Download

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Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 1968 03 Dec 2019
Design files (6)
Title Type Size (KB) Date
ZIP 1465 03 Dec 2019
ZIP 3911 03 Dec 2019
ZIP 1850 03 Dec 2019
ZIP 342 03 Dec 2019
ZIP 128 03 Dec 2019
ZIP 721 03 Dec 2019
Related Tools & Software

Hardware development (1)

Name Part Number Tool Type
F280049C controlCARD Evaluation Module  TMDSCNCD280049C  Daughter cards 

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