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HEV/EV inverter & motor control

Traction inverter

Products and reference designs
Block diagram

Traction inverter

Block diagram

Overview

Our integrated circuits and reference designs allow you to create traction inverter designs that efficiently convert DC power to alternating phases of power to drive multi-phase motors.

Design requirements

Traction inverter designs require:

  • Safely and efficiently control and protect the power switch (IGBT/SiC).
  • Position sensing of the motor shaft (resolver replacement).
  • Following state-of-the-art architecture regarding system redundancy in order to allow implementation of the system on the highest safety level.

Block diagram

Find products and reference designs for your system.

Traction inverter

V/I SENSE V/I SENSE 12V 12V System basis chip (SBC) System basis chip (SBC) System monitors System monitors Diagnostics Diagnostics SPI SPI DC/DC DC/DC LDOs LDOs WDT WDT Non-isolated DC/DC power supply Non-isolated DC/DC power supply DC/DC DC/DC High voltage High voltage Input power protection Input power protection Reverse polarity protection Reverse polarity protection Digital processing Digital processing CAN CAN MCU core MCU core PWM PWM GPIOs GPIOs ADC ADC M M Pos. Pos. Rotor position sensing Rotor position sensing Position sensing Position sensing Self-diagnostics/monitoring Self-diagnostics/monitoring Sensors (V,T,I %..) Sensors (V,T,I %..) ADC ADC VREF VREF AFE AFE Safety & glue logic Safety & glue logic Loads Loads Galvanic isolation Galvanic isolation Power stage Power stage Half bridge Half bridge LS driver LS driver L O G I C LOGIC HS driver HS driver D I G DIG I S O ISO Isolated bias supply Isolated bias supply DC/DC DC/DC DC/DC DC/DC Redundant power supply (backup) Redundant power supply (backup) DC/DC DC/DC DC/DC DC/DC Wired interface Wired interface CAN CAN Signal isolation Signal isolation D I G DIG I S O ISO Current & voltage sense Current & voltage sense ISO ISO A M P AMP AMP AMP

Rotor position sensing

close

Position sensing is important for the motor control algorithm and commutation of the motor. High voltage traction inverters typically use absolute rotor position sensors such as resolvers.

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Sensors (2)
Inductive sensor AFEs
  • LDC5071-Q1—Automotive inductive position sensor AFE with sine/cosine interface
    Data sheet: PDF | HTML
Multi-axis linear & angle position sensors
  • TMAG6180-Q1—Automotive high-precision analog AMR angle sensor with 360° angle range
    Data sheet: PDF | HTML
Amplifiers (21)
Power op amps
  • ALM2403-Q1—Automotive, dual-channel, high-voltage, power op amp with low distortion for resolver applications
    Data sheet: PDF | HTML
  • ALM2402F-Q1—High output current operational amplifier for automotive, dual channel
    Data sheet: PDF | HTML
  • OPA564-Q1—Automotive 1.5A, 24V, 17MHz, Power Operational Amplifier
    Data sheet: PDF | HTML
Comparators
  • TLV9021-Q1—Automotive single low-voltage comparator with open-drain output
    Data sheet: PDF | HTML
  • LM2903B-Q1—Automotive, dual differential commodity comparator
    Data sheet: PDF | HTML
  • LM2901B-Q1—Automotive, 36-V, quad differential standard comparator
    Data sheet: PDF | HTML
  • TLV1811-Q1—Automotive, single-channel micropower high-voltage comparator with push-pull output
    Data sheet: PDF | HTML
  • LM393LV-Q1—Automotive low-voltage commodity comparator
    Data sheet: PDF | HTML
  • TLV1701-Q1—Automotive single high-voltage, low power comparator
    Data sheet: PDF | HTML
General-purpose op amps
  • TLV9064-Q1—Automotive-grade, quad, 5.5-V, 10-MHz, RRIO operational amplifier for cost-optimized applications
    Data sheet: PDF | HTML
  • OPA2991-Q1—Automotive, dual, 40-V 4.5-MHz low-power operational amplifier
    Data sheet: PDF | HTML
  • TLV9001-Q1—Automotive, single-channel, 5.5-V 1-MHz rail-to-rail input and output operational amplifier
    Data sheet: PDF | HTML
  • TLV9352-Q1—Automotive-grade, dual, 40-V, 3.5-MHz, low-power operational amplifier
    Data sheet: PDF | HTML
  • TLV9151-Q1—Automotive, single-channel, 16V, 4.5MHz low offset voltage low-noise operational amplifier
    Data sheet: PDF | HTML
  • TLV9354-Q1—Automotive, quad, 40-V 3.5-MHz low-power operational amplifier
    Data sheet: PDF | HTML
Precision op amps (Vos<1mV)
  • OPA376-Q1—Automotive Precision, Low Noise, Low Iq Operational Amplifier
    Data sheet: PDF | HTML
  • OPA388-Q1—Automotive qualified, wide bandwidth, zero drift, zero cross over, precision amplifier
    Data sheet: PDF | HTML
  • TLV197-Q1—Automotive, single channel, high-voltage, precision, RRIO op amp
    Data sheet: PDF | HTML
  • LMV842-Q1—Automotive, Dual CMOS Input, RRIO, Wide Supply Range Quad Operational Amplifiers
    Data sheet: PDF | HTML
  • OPA2376-Q1—Low Noise, Low Quiescent Current, Precision Operational Amplifier e-trim/trade
    Data sheet: PDF | HTML
  • LMV844-Q1—Automotive, Quad CMOS Input, RRIO, Wide Supply Range Quad Operational Amplifiers
    Data sheet: PDF | HTML
Audio (3)
Speaker amps
  • TPA6211T-Q1—Automotive, 3.1-W, mono, analog input class-AB audio amplifier
    Data sheet: PDF | HTML
  • TPA6211A1-Q1—Automotive, 3.1-W, mono, analog input Class-AB audio amplifier
    Data sheet: PDF | HTML
  • TAS5431-Q1—8-W mono automotive Class-D audio amplifier with load dump and I2C diagnostics
    Data sheet: PDF | HTML
  • TIDA-010947—High-resolution, low-latency, compact absolute angle encoder reference design with AMR sensor
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-01527—Discrete Resolver Front-End Reference Design With C2000™ Microcontroller and ±0.1° Accuracy
    Design guide: PDF Schematic: PDF Schematic: PDF

Technical documentation

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Type Title Date
Technical article Improving safety in EV traction inverter systems PDF | HTML 31 Aug 2023
Technical article 3 ways MCUs are addressing common design challenges of 800-V EV traction inverters PDF | HTML 18 Jul 2023
Technical article Reducing power loss and thermal dissipation in SiC traction inverters PDF | HTML 08 Aug 2023

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