SiC/IGBT isolated gate driver reference design with thermal diode and sensing FET


Design files


This reference design is an IGBT or SiC isolated gate driver power stage driving a IGBT module with advanced protection features. The design consists of a single phase power stage from a traction inverter supporting high level of safety features. The IGBT module has integrated thermal diode for temperature monitoring and sensing FET for over current protection, providing fast and accurate protections. It includes the bias supplies and its output voltage monitoring, isolated DC bus sensing in redundant circuits, temp sensing for high side and low side drivers, PWM gate signal monitoring, fault signal injection diagnostics. The supply accepts a wide input range of 4.5V to 65V DC, and delivers up to 180mA output current. The isolated gate driver has up to ±10A drive strength and also includes an analog to PWM converter, which is utilized for temperature and voltage sensing.

  • Single-phase power stage design for HEV/EV traction inverter applications
  • Includes a 700-V, 450-A, double-side-cooled IGBT module with integrated thermal diode for temperature monitoring and sensing FET for overcurrent protection
  • Multiple redundant circuits, supply voltage monitoring and PWM output monitoring for increased level of system safety
  • Isolated gate driver on board with a ±10-A drive strength, fast overcurrent and short-circuit protection and analog-to-PWM sensor
  • Fault signal injection for function validation
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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.

TIDUEV9.PDF (4367 K)

Reference design overview and verified performance test data

TIDM395.PDF (643 K)

Detailed schematic diagram for design layout and components

TIDM396.PDF (114 K)

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

TIDM397.PDF (578 K)

Detailed overview of design layout for component placement

TIDM399.ZIP (3639 K)

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


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

TIDM398.PDF (2987 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Design guide SiC/IGBT Isolated Gate Driver Reference Design With Thermal Diode and Sensing Dec. 18, 2019

Related design resources

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TIDA-020014 HEV/EV traction inverter power stage with 3 types of IGBT/SiC bias-supply solutions reference design

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