This part is a kind of semiconductor called L6388E.

Function of this product has High-voltage high and low side driver.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

L6388E High-voltage high and low side driver Features ■ ■ ■ High-voltage rail up to 600 V dV/dt immunity ±50 V/nsec in full temperature range Driver current capability: – 400 mA source – 650 mA sink Switching times 70/40 nsec rise/fall with 1nF load 3.3 V, 5 V, 15 V CMOS/TTL input comparators with hysteresis and pull-down Internal bootstrap diode Outputs in phase with inputs Dead time and interlocking function DIP-8 SO-8 Description The L6388E is a high-voltage device, manufactured with the BCD™ “offline” technology. It has a driver structure that enables the driving of independent referenced n channel Power MOSFETs or IGBTs. The high side (floating) section is enabled to work with voltage rail up to 600 V. The logic inputs are CMOS/TTL compatible to ease the interfacing [ ... ]

L6388E PDF Datasheet Download