This part is a kind of semiconductor called 3935.

Function of this product has 3-PHASE POWER MOSFET CONTROLLER.

Manufacturers : Allegro MicroSystems

Image and pinout :

Some of the text within the PDF file :

Data Sheet 26301.102a 3935 Package ED, 44-Pin PLCC 3-PHASE POWER MOSFET CONTROLLER For Automotive Applications The A3935 is designed specifically for automotive applications that require high-power motors. Each provides six high-current gate drive outputs capable of driving a wide range of n-channel power MOSFETs. A requirement of automotive systems is steady operation over a varying battery input range. The A3935 integrates a pulse-frequency modulated boost converter to create a constant supply voltage for driving the external MOSFETs. Bootstrap capacitors are utilized to provide the above battery supply voltage required for n-channel FETs. Direct control of each gate output is possible via six TTL-compatible inputs. A differential amplifier is integrated to all [ ... ]

3935 PDF Datasheet Download