40-V gate driver reduces IGBT switching losses
The gate driver typically provides a drive current of 4 A for an input current of 1 mA, making it a perfect high-gain buffer stage between the high output impedance of a controller and the low input impedance of the IGBT. With an emitter-follower configuration, the ZXGD3006E6 is inherently resistant to latch-up and shoot-through issues and delivers propagation delay times of less than 10 ns.
The ZXGD3006E6’s wide 40 V operating range allows full enhancement of the switching device to minimize on-state losses and permits +20 V to -18 V gate driving to prevent dV/dt induced false triggering of IGBTs.
To enable circuit designers to better define switching characteristics for particular applications, the gate driver offers separate source and sink outputs, allowing independent control of rise and fall times. This combined with 10 Amp peak current handling, allows for controlled charge and discharge of large gate capacitive loads which reduces the risk of EMI issues and cross conduction at higher operating frequencies.
Delivering higher pulse currents than competing devices, this rugged SOT26 packaged gate driver ensures heat dissipation is reduced, resulting in an increase in product reliability. Device pin-out has also been optimized enabling a simplification of PCB layouts and a reduction in parasitic trace inductances.
The ZXGD3006E6 high current gate driver from Diodes Incorporated is priced at $0.22 each in quantities of 1k.
Visit Diodes at www.diodes.com.
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