Basic Isolated Three-Phase Compact Power Stage Reference Design for Industrial Drives

(ACTIVE) TIDA-01420

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Key Document

Description

This three-phase, compact power stage reference design for industrial drives, which uses a UCC53xx gate driver to support basic capacitive isolation requirements, provides an increased lifespan and better propagation delay match over optocouplers to minimize inverter deadband distortions and losses. If required, another level of basic isolation can be used between the controllers to achieve reinforced isolation at the system level. This approach optimizes the isolation cost of the system and adds an added benefit of compactness. This design also demonstrates the interlocking feature of the gate driver, which protects the IGBTs during shoot-through. This reference design uses the F28379 Delfino control card to generate PWM signals for controlling the three-phase inverter.

Features
  • Basic isolated 200- to 480-V AC three-phase power statge with direct PWM CMOS interface to MCU for hot-side control
  • Low pin count gate driver UCC53xx enables compact solution and increased flexibility of gate driver placement
  • Short (72ns typical) propagation delay and very small skew between propagation delays optimizes deadband distortion and losses
  • Gate driver supports option for PWM interlock protection to avoid shoot-through
  • Option to populate three variants of gate drivers:
    • Miller clamp to avoid parasitic turnon effect
    • UVLO with reference to emitter to provide robust protection of IGBT against operation of linear region
    • Split output to control rise and fall times

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Bill of Materials (BOM)

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TI Devices (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AMC1306E25  Small Reinforced Isolated Modulator With ±250mV Input and Manchester-Encoded CMOS Interface  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
LM3480  100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator  Power management  Sample & Buy Not Available
SN74LVC1G17  Single Schmitt-Trigger Buffer  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
TLV1117  Single Output LDO, 800mA, Fixed and Adj., Internal Current limit, Thermal Overload Protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV521  350-nA Nanopower, Single, RRIO, CMOS Input, Operational Amplifier for Cost-Sensitive Systems  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24V Input Voltage, 150mA, Ultra-Low-Iq Low-Dropout (LDO) Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC5350  5A/5A, 3-kVRMS Single-Channel Isolated Gate Driver With Miller Clamp (M) or With Split Output (S)  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC5390  10A/10A Single-Channel Isolated Gate Driver for Bipolar Supply (E) or With Split Output (S)  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
AMC1306E25 Download Download
LM3480 Download Download
SN74LVC1G17 Download -
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TLV1117 Download Download
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TLV521 Download
TLV704 Download Download
UCC5350 Download Download
UCC5390 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date
PDF 2687 22 Sep 2017
Design files (6)
Title Abstract Type Size (KB) Date
ZIP 332 22 Sep 2017
ZIP 1903 22 Sep 2017
PDF 2861 22 Sep 2017
PDF 594 22 Sep 2017
PDF 102 22 Sep 2017
PDF 1673 22 Sep 2017
Related Tools & Software

Reference Designs  ( 3 )

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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