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


Design files


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.

  • 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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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUDG6.PDF (2687 K)

Reference design overview and verified performance test data

TIDRSU7.PDF (1673 K)

Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDRSV1.ZIP (1903 K)

Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDRSV0.PDF (2861 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

General-purpose op amps

TLV521Single, 5.5-V, 6-kHz, ultra-low quiescent current (350-nA), RRIO operational amplifier

Data sheet: PDF | HTML
Isolated ADCs

AMC1306E25±250-mV input, precision current sensing reinforced isolated modulator with Manchester code

Data sheet: PDF | HTML
Isolated gate drivers

UCC53503kVrms, 5A/5A single-channel isolated gate driver with miller clamp or split out & 8V or 12V UVLO

Data sheet: PDF | HTML
Isolated gate drivers

UCC53903kVrms/5kVrms, ±10A single-channel isolated gate driver with UVLO referenced to GND or split output

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

LM3480100-mA, 30-V, low-dropout voltage regulator

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TLV1117800-mA, 15-V, linear voltage regulator

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TLV704150-mA 24-V ultra-low-IQ low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML
Noninverting buffers & drivers

SN74LVC1G17Single 1.65-V to 5.5-V buffer with Schmitt-Trigger inputs

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Basic Isolated Three-Phase Compact Power Stage Ref Design for Industrial Drives Sep. 22, 2017

Related design resources

Hardware development

TMDSCNCD28379D F28379D development kit for C2000™ Delfino MCU controlCARD™

Reference designs

TIDA-00195 Isolated IGBT Gate Driver Evaluation Platform for 3-Phase Inverter System Reference Design TIDA-00366 Reference design for reinforced isolation 3-phase inverter with current, voltage and temp protection TIDA-00914 Reinforced Isolated Phase Current Sense Reference Design with Small Delta Sigma Modulators

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