Texas Instruments TIDM-2014 Design Manual

www.ti.com
Design Guide:
Automotive, High-Power, High-Performance SiC Traction
Inverter Reference Design
Description
TIDM-2014 is a 800-V, 300 kW SiC-based traction
inverter system reference design developed by
Texas Instruments and Wolfspeed which provides
a foundation for design engineers to create high-
performance, high-efficiency traction inverter systems
and get to market faster. The design features
high-performance isolated gate driver with real-time
variable gate drive strength, isolated bias supply with
integrated transformer along with TI's high real-time
performance, MCUs that can control traction motor
even at speeds greater than 20,000 RPM while
supporting functional safety requirements.
Resources
TIDM-02014
UCC5880-Q1, AM2634-Q1
TMS320F280039C-Q1, UCC14240-Q1
UCC12051-Q1, AMC3330-Q1
TCAN1462-Q1, ISO1042-Q1,
ALM2403-Q1
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12 V Battery Vin
Supply
Diagnostics / Bias Supply High Side
Monitoring
Batt Volt
Monitoring
Supply
Diagnostics / Bias Supply Low Side
Monitoring
PMIC
VCU SPI
ASC
WD
BIST
CAN
VCU PWM
PWM
HSM
CLB
SPI / Fault
SPI SPI
Sensing and gate driver
diagnostics
CMPSS
Sensing signal Isolated Amplifier
ADC
Isolated Comparator
Wired
VCU
Interface
Excitation & Feedback
ADC
Safety MCU
TIDUF23 – MAY 2023
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800 V Bus
DC Link Cap Discharge
Motor Phases
DESAT
OUT1
Adj.
M
Gate
OUT2
SiC
drive
Power Modules
Isolated
NTC
Gate Driver
Hall
Temp
R
A to D
Sensing
Resolver
A to D
Temp Sensing / Hall
ASC
Phase Node sensing
Phase Current Sensing
DC Bus Sensing DC Bus
Resolver AFE
Excitation
Signal Conditioning
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Features
• Real-time variable gate drive strength features
enable improvement in system efficiency by
minimizing the SiC switching power losses and
accurate bias supply minimizes conductive losses .
• Isolated gate drivers and bias supply module
reduce PCB area by 30%.
• High performance MCUs enable industry's fastest
motor control loop (<2 µs), which helps to minimize
torque ripple and provides smooth speed and
torque current profiles to the traction motor.
• UCC5880-Q1 and AM2634-Q1 are Functional
Safety-Compliant targeted devices.
• Enhance system reliability with reinforced rated
capacitive isolation technology and early failure
detection.
Applications
• HEV/EV Traction Inverters
Automotive, High-Power, High-Performance SiC Traction Inverter Reference
Description
1
Design