ADuM3220 4A Dual-Channel Gate Driver

Analog Devices' ADuM3220 is a 4 A isolated, dual-channel gate driver based on Analog Devices' iCoupler® technology. Combining high-speed CMOS and monolithic transformer technology, this isolation component provides outstanding performance characteristics superior to the alternatives, such as the combination of pulse transformers and gate drivers.

The ADuM3220 isolator provides two independent isolation channels. It has a maximum propagation delay of 60 ns and 5 ns channel-to-channel matching. In comparison to gate drivers employing high voltage level translation methodologies, the ADuM3220 offers the benefit of true, galvanic isolation between the input and each output, enabling voltage translation across the isolation barrier. The ADuM3220 has shoot-through protection logic and a default output low characteristic as required for gate drive applications. It operates with an input supply voltage ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems. The outputs may be operated at supply voltages from 5 V to 18 V, which supports typical gate drive voltages for synchronous DC/DC converters.