MIC4606

MIC4606 85V Full-Bridge MOSFET Drivers with Adaptive Dead Time and Shoot-Through Protection Features 5.5V to 16V Gate Drive Supply Voltage Range Advanced Adaptive Dead Time Intelligent Shoot-Through Protection MIC4606-1: 4 Independent TTL Inputs MIC4606-2: 2 PWM Inputs Enable Input for On/Off Control On-Chip Bootstrap Diodes Fast 35 ns Propagation Times Drives 1000 pF Load with 20 ns Rise and Fall Times Low Power Consumption: 235 µA Total Quiescent Current Separate High- and Low-Side Undervoltage Protection –40°C to +125°C Junction Temperature Range Applications Full-Bridge Motor Drives Power Inverters High Voltage Step-Down Regulators Distributed Power Systems Stepper Motors General Description The MIC4606 is an 85V full-bridge MOSFET driver that features adaptive dead time and shoot-through protection. The adaptive dead time circuitry actively monitors both sides of the full-bridge to minimize the time between high-side and low-side MOSFET transitions, thus maximizing power efficiency. Anti shoot-through circuitry prevents erroneous inputs and noise from turning both MOSFETs of each side of the bridge on at the same time. The MIC4606 also offers a wide 5.5V to 16V operating supply range to maximize system efficiency. The low 5.5V operating voltage allows longer run times in battery-powered applications. Additionally, the MIC4606’s adjustable gate drive sets the gate drive voltage to VDD for optimal MOSFET RDS(ON), which minimizes power lo...