ADUM4138WBRNZ

ADuM4138 is a single-channel gate driver optimized for driving insulated gate bipolar transistor (IGBT). Qualified for automotive applications. Analog Devices, Inc., iCoupler® technology provides isolation between the input signal and the output gate drive. 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 can be read back from the dedicated outputs. The ADuM4138 includes an isolated flyback controller, allowing simple secondary voltage generation. Overcurrent detection is integrated in the ADuM4138 to protect the IGBT in case of desaturation and/or overcurrent events. The overcurrent detection is coupled with a high speed, two-level turn off function in case of faults. Typical application includes MOSFET and IGBT gate drivers, photovoltaic (PV) inverters, motor drives and power supplies.

• 6A (typical) peak drive output capability
• Internal turn off NFET, on resistance is 1ohm and internal turn on PFET, on resistance is 1.2ohm
• 2 overcurrent protection methods (desaturation detection and split emitter overcurrent detection)
• Miller clamp output with gate sense input
• Isolated fault output, isolated temperature sensor readback
• Propagation delay of 95ns typical rising and 100ns typical falling
• Minimum pulse width of 74ns
• Input voltage range from 12V to 25V, qualified for automotive application
• 28 lead WSOIC package
• Operating temperature range from -40°C to 150°C

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