To switch high power IGBTs in solar inverter, motor drive and power supplies, the ZXGD3006E6 gate driver from Diodes typically provides a drive current of 4A for an input current of 1mA. This balance makes it suitable as a high-gain buffer stage between the high output impedance of a controller and the low input impedance of the IGBT, says the company. With an emitter-follower configuration, the driver is resistant to latch-up and shoot-through issues and has propagation delay times of less than 10ns. The wide, 40V operating range allows minimises on-state losses and permits +20V to -18V gate driving to prevent dV/dt induced false triggering of IGBTs. The driver has separate source and sink outputs which allows independent rise and fall time control, so that designers can define switching characteristics. Peak current is 10A.
