TIDA-020014

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

TIDA-020014

Design files

Overview

This reference design presents a traction inverter single-phase power stage with three 12-V car battery inputs, 4.2-W bias supply solutions for hybrid electric vehicle and electric vehicle (HEV/EV) systems. All bias-supply solutions accept a wide input range of 4.5 V to 42 V DC from a 12-V car battery, and generate outputs as +15 V, –8 V or +20 V, –4 V configurable and up to 180-mA output current. The power stage includes the isolated gate drivers with 5.7-kVRMS reinforced isolation and designed in 100-mm × 62-mm form factor fitting on SiC/IGBT half bridge modules. It includes isolated DC bus sensing, isolated temperature sensing, logic shoot-through protection and diagnostic features. Apart from startup, efficiency, load regulation tests under low voltage input, all bias supplies are also connected with power stage and IGBT module for CMTI, double pulse, and short-circuit tests under high voltages.

Features
  • Traction-inverter, single-phase, power-stage design includes dual-channel isolated gate driver, isolated DC bus voltage sensing, and isolated temperature sensing
  • Three types of SiC/IGBT bias-supply solutions for IGBT/SiC isolated gate drivers
  • Wide-VIN converters over the input voltage of 4.5-V to 42-V DC
  • Output configurable as +15 V, –8 V or +20 V, –4 V at loads up to 180 mA for driving Si IGBT and SiC MOSFET modules
  • Primary-side regulation with no optocoupler for extended lifetime and small form factor
Output voltage options TIDA-020014.1
Vin (Min) (V) 4.5
Vin (Max) (V) 42
Vout (Nom) (V) 15
Iout (Max) (A) .18
Output Power (W) 2.7
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- DCM^Flyback- Integrated Switch^Forward- Push Pull
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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.

TIDUEO7.PDF (26487 K)

Reference design overview and verified performance test data

TIDRZF5.ZIP (373 K)

Detailed schematic diagram for design layout and components

TIDRZF6.ZIP (145 K)

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

TIDRZF7.ZIP (253 K)

Detailed overview of design layout for component placement

TIDRZF9.ZIP (1668 K)

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

TIDRZG0.ZIP (2645 K)

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

TIDCFE6.ZIP (1140 K)

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

TIDRZF8.ZIP (1111 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

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Buck converters (integrated switch)

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Ideal diode/ORing controllers

LM74700-Q13.2-V to 65-V, 80-uA IQ automotive ideal diode controller

Data sheet: PDF | HTML
Isolated DC/DC converters & modules

LM5180-Q1Automotive 65-VIN no-opto flyback converter with 100-V, 1.5-A integrated MOSFET

Data sheet: PDF | HTML
Isolated amplifiers

AMC1301-Q1Automotive Precision ±250mV-Input 3µs-Delay Reinforced Isolated Amplifier

Data sheet: PDF | HTML
Isolated amplifiers

AMC1311-Q1Automotive, 2-V input, precision voltage sensing reinforced isolated amplifier

Data sheet: PDF | HTML
Isolated gate drivers

ISO5852S-Q1Automotive 5.7kVrms 2.5A/5A single-channel isolated gate driver w/split output & active protection

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

TPS709150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable

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

TPS7B82-Q1Automotive 300-mA, off-battery (40-V), ultra-low-IQ LDO with enable in AEC-Q100 Grade-0 and Grade-1

Data sheet: PDF | HTML
N-channel MOSFETs

CSD18543Q3A60-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 9.9 mOhm

Data sheet: PDF | HTML
Supervisor & reset ICs

TPS3700-Q1Automotive high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring

Data sheet: PDF | HTML
Transformer drivers

SN6505B-Q1Automotive, low-noise, 1-A, 420-kHz transformer driver with soft start for isolated power supplies

Data sheet: PDF

Technical documentation

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Type Title Date
* Design guide HEV/EV Traction Inverter Power Stage W/ 3 Types of IGBT/SiC Bias-Supply Sol. Ref Apr. 03, 2019

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-01604 98.6% Efficiency, 6.6-kW Totem-Pole PFC Reference Design for HEV/EV Onboard Charger TIDA-01605 Automotive Dual Channel SiC MOSFET Gate Driver Reference Design with Two Level Turn-off Protection TIDA-020015 4.5-V to 65-V input, compact bias supply with power stage reference design for IGBT/SiC gate drivers

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