IPM Interface Reference Design for Inverters Using Single Package Six Channel Digital Isolator TIDA-01349 (ACTIVE)

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Key Document

Description

This reference design realizes a three-phase inverter subsystem for AC inverter drives and servo drives using an intelligent power module (IPM). Reinforced isolation is present between the microcontroller (MCU) and the IPM-based power stage. The PWM signals are isolated using the single-package, six-channel digital isolator, ISO7760. In-phase current sensing is done in two motor phases using the isolated delta-sigma modulator, AMC1303M0520. DC bus voltage feedback and module temperature feedback is provided to the MCU through isolated delta-sigma modulators, AMC1303M2520. This reference design is controlled by a C2000™ MCU.

Features
  • Power stage suited for 200-V to 480-V AC drives with continuous current rating up to 5 Arms and peak current rating of 10 Apk using a 1200-V, 15-A IPM
  • Reinforced isolation between controller and power stage
  • Single-package reinforced isolator ISO7760 for six PWM signals reduces BOM count and PCB footprint when compared to multiple optoisolators
  • Excellent propagation delay matching of isolator channels allows for smaller dead time, resulting in reduced inverter output distortions and better efficiency
  • PWM isolator with very low current consumption and self heating allows powering from 15-V IPM supply with small footprint LDO
  • IEC61800-3 EMC immunity for EFT up to 4 kV on motor power cable

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Design Files

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AMC1303M0520  Small Reinforced Isolated Modulator With ±50mV Input, Internal Clock, and CMOS Interface  Isolation  Sample & Buy View Design Kits & Evaluation Modules
AMC1303M2520  Small Reinforced Isolated Modulator With ±250mV Input, Internal Clock, and CMOS Interface  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISO7760  High-speed, robust EMC six-channel digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
TLV760  100-mA, 30-V wide-VIN, fixed-output linear voltage regulator  Power management  Sample & Buy Not Available
TPS706  150-mA, 6.5-V, 1-μA IQ Voltage Regulators with Enable  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A4201  28-V input, 50-mA, single-output low-dropout linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
AMC1303M0520 Download Download
AMC1303M2520 Download Download
ISO7760 Download Download
Download Download
TLV760 Download Download
TPS706 Download Download
Download Download
TPS7A4201 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 2418 29 Jan 2018
Design files (6)
Title Type Size (KB) Date
ZIP 1058 29 Jan 2018
ZIP 2489 29 Jan 2018
ZIP 1048 29 Jan 2018
ZIP 202 29 Jan 2018
ZIP 57 29 Jan 2018
ZIP 484 29 Jan 2018
Related Tools & Software

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
F28379D controlCARD for C2000 Real time control development kits  TMDSCNCD28379D  Development Kits 

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