Isolated 4A single-channel gate drivers provide precision isolation

The Analog Devices ADuM3123 isolated precision gate driver is now available from Mouser stock. The 4A single-channel drivers were developed with Analog Devices' Coupler technology to provide precision isolation. They offer 3000Vrms isolation in a narrow body 8-lead SOIC package. Combining high speed CMOS and monolithic transformer technology, the devices deliver outstanding performance characteristics superior to alternatives such as the combination of pulse transformers and gate drivers, says the company. The devices operate with an input supply ranging from 3.0V to 5.5V, providing compatibility with lower voltage systems. Compared to gate drivers using high voltage level translation methodologies, the ADuM3123 devices offer the benefit of true, galvanic isolation between the input and the output. Designer can continuously operate the output up to 380Vrms relative to the input. As a result, the ADuM3123 drivers provide reliable control for the switching characteristics of IGBT/MOSFET configurations over a wide range of positive or negative switching voltages. Applications include switching power supplies, Isolated gate bipolar transistors (IGBT)/MOSFET gate drives and industrial inverters.