This part is a kind of semiconductor called M57962L.

Function of this product has HYBRID IC FOR DRIVING IGBT MODULES.

Manufacturers : Mitsubishi

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Some of the text within the PDF file :

MITSUBISHI HYBRID ICs M57962L HYBRID IC FOR DRIVING IGBT MODULES Block Diagram 4 VCC 14 185Ω Detect Circuit Timer and Reset Circuit Interface 5 VOUT 1 Detect Pin Hybrid Integrated Circuit For Driving IGBT Modules Description: M57962L is a hybrid integrated circuit designed for driving n-channel IGBT modules in any gate amplifier application. This device operates as an isolation amplifier for these modules and provides the required electrical isolation between the input and output with an opto-coupler. Short circuit protection is provided by a built in desaturation detector. A fault signal is provided if the short circuit protection is activated. Features: ٗ Built in high CMRR optocoupler (VCMR : Typical 30kV/µs, Min. 15kV/µs) ٗ Electrical Isolation between input and output with opt [ ... ]

M57962L PDF Datasheet Download