TOSHIBA RELEASES SIC MOSFET GATE DRIVER PHOTOCOUPLER WITH ENHANCED SAFETY FUNCTIONS FOR INDUSTRIAL EQUIPMENT

KAWASAKI, Japan, March 6 (Bernama) -- Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched a gate driver photocoupler, “TLP5814H,” with an output of +6.8A/-4.8A, in a small size SO8L package, that incorporates an active Miller clamp function for driving silicon carbide (SiC) MOSFETs. Volume shipments start today.

In circuits such as inverters, where MOSFETs or IGBTs are used in series, gate voltage can be generated by a Miller current[1] when the lower arm[2] is turned off, causing malfunctions such as short circuits in the upper and lower arms[3]. A commonly used protection function to prevent this is the application of a negative voltage to the gate when it is turned off.