Texas Instruments OPA320 | Demoboard TIDA-01540

Description

This reference design reduces system cost andenables a compact design for a reinforced, isolated,10-kW, three-phase inverter. A lower system cost andcompact form factor is achieved by using a dual gatedriver in a single package and bootstrap configurationto generate floating voltages for the gate drive powersupply. The dual gate driver UCC21520 has a built-indead time insertion configurable by a resistor option.This unique dead time insertion protects the threephaseinverter against shoot-through due to overlap ofthe input PWM signal. System reliability is improved byprotecting against overload, short circuit, ground fault,DC bus undervoltage and overvoltage, and IGBTmodule overtemperature in hardware.

Features

Remark: BOM, Schematic PDF are added with User's Guide.

• Reinforced, Isolated Inverter Suited for 200-V to690-V AC Drives Rated up to 10 kW
• Reinforced, Isolated, Half-Bridge Gate Driver HasExcellent Propagation Delay Matching to EnableSmaller Dead Time (Lower Distortions and LowerPower Losses)
• Integrated Interlock, Dead Time, and InsertionProtects IGBT When PWM Input Signals Overlap(Programmable Dead Time)
• STO and Fail-Safe Measure Against Primary-SideLogic Failures, More Reliable With a Disable SignalThat Simultaneously Shuts Down Both High- andLow-Side Gate Drive Outputs to IGBTs
• UCC21520 Has High CMTI (100 kV/μs) for HighRobustness Against Switching Transients
• UCC21520 Rejects Input Pulses and NoiseTransients Shorter Than 5 ns to Avoid FalseTurnon or Turnoff of IGBTs

Typical applications

• Servo CNC and Robotics
• AC Inverters and VF Drives, Three-Phase UPS, Solar Inverters

More information

• Datasheet
• IC product information