Advanced High Voltage Isolated Gate Driver with Dynamic Gate Strength Control

GD3162

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The GD3162 is an advanced, galvanically-isolated, single-channel gate driver designed to drive the latest SiC and IGBT modules for xEV traction inverters.

The GD3162 offers an adjustable dynamic gate strength drive via a programmable interface over SPI. In addition, advanced programmable protection features are autonomously managed as faults and the status of the power device and gate driver are reported via the interrupt pins.

The GD3162 is designed for high-functional safety integrity level systems (ASIL C/D) and meets the stringent requirements of automotive applications, being fully AEC-Q100 grade 1 qualified.

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Block Diagram

GD3162

GD3162 Block Diagram
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Features

Operation

  • Integrated boost capability for increased drive strength: Up to 10 / 20 / 30 A source/sink current
  • Max VCC output voltage: 25 V
  • Programmable ADC delay – Up to 8 μs sampling delay from rising or falling edge of PWM

Protection

  • Integrated HV temperature sensing (TSENSE) for NTC thermistor or diode sensors with programmable offset and gain
  • Fast VCE DeSat detection and reaction time: < 1 µs (SiC)
  • Improved PWM deadtime range for reduced switching losses (SiC)
  • Programmable two-level turn off (2LTO) and soft-shutdown (SSD)
  • Provides either MCU controlled or safety logic controlled gate drive to actively discharge the DC link capacitor

Functional Safety

  • Additional programmable fault pin (INTA)
  • Integrated HV fault management (FSISO)
  • Programmable VCE output monitoring

Insulation/Isolation

  • Minimum common mode transient immunity (CMTI) > 100 V/ns
  • 5,000 Vrms galvanic isolation per UL1577 (planned)

Part numbers include: MGD3162AM550EK, MGD3162AM551EK.

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