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Analog Devices ADuM4135

ADuM4135 - Single / Dual-Supply High-Voltage Isolated IGBT Gate Driver

The ADuM4135 is a single channel gate driver specifically optimized for driving IGBTs and enhances protection for three-phase motor control inverter applications. Analog Devices, Inc. i-Coupler® technology provides isolation between the input signal and the output gate drive.

The ADuM4135 provides a miller clamp in order to provide robust IGBT turn-off with a single rail supply once the gate voltage drops below 2 V. Operation with unipolar or bipolar secondary supplies is possible, with or without the miller clamp operation.

The Analog Devices chip-scale transformers also provide isolated communication of control information between the high voltage and low voltage domains of the chip. Information on the status of the chip may be read back from dedicated outputs. Control of resetting the part after a fault on the secondary is performed on the primary side of the device.

Features

  • 4A peak drive output capability
  • Output power device resistance < 1Ω
  • De-saturation protection
  • Isolated De-saturation Fault: Reporting; Soft-Shutdown on Fault
  • Miller Clamp output with Gate sense input
  • Isolated Fault and Ready functions
  • Low propagation delay (50ns typical)
  • 50ns Minimum Pulse width
  • Operating temperature range (-40 to 125ºC)
  • Output Voltage Range to 30V
  • Output and Input Under Voltage Lockout (UVLO)

Applications

  • MOSFET/IGBT gate drivers
  • PV Inverters
  • Motor drives
  • Power supplies

Block Diagram