Power Electronics
 85 V Full Bridge MOSFET Driver Suits Battery Operated Tools

85 V Full Bridge MOSFET Driver Suits Battery Operated Tools

The MIC4606 from Micrel, Inc. is an 85 V Full Bridge MOSFET driver that features Adaptive-Dead-Time and Shoot-Through Protection. The device is part of Micrel's 85 V MOSFET Driver family first launched in 2013 and is designed to focus on the growing power needs of multiple applications. The 5 V MIC4606 family is part of Micrel's strategy to address battery powered tools, uninterrupted power supplies, radio controlled toys and the growing drone market. The MIC4606 combines a full array of features and technology solutions all designed to maximize power efficiency. The Adaptive-Dead-Time circuitry actively monitors the Full Bridge to minimize time between high and low side MOSFET transitions. The Anti-Shoot-Through circuitry prevents erroneous inputs and noise from turning on both MOSFETs at the same time. The device also offers a wide 5.5 V to 16 V operating supply range that also maximizes system efficiency. The low 5.5 V operating voltage allows for longer run time in battery powered applications.

These features combine to make the MIC4606 an ideal solution for the industry's most demanding battery operated motor applications including power tools and power DC/AC inverters. In addition, the 85 V operating voltage offers plenty of margins in order to protect against voltage spikes that are typical in motor drive and power supply circuitry. The MIC4606 is available in a tiny 16 pin, 4 mm × 4 mm QFN package with an operating junction temperature range of -40 °C to +125 C. The MIC4606 is currently available in volume with pricing starting at $1.37 for 1K quantities in a 4 mm x 4 mm QFN package.

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