This part is a kind of semiconductor called L6388.

Function of this product has HIGH-VOLTAGE HIGH AND LOW SIDE DRIVER.

Manufacturers : ST Microelectronics

Image and pinout :

Some of the text within the PDF file :

L6388 HIGH-VOLTAGE HIGH AND LOW SIDE DRIVER 1 ■ ■ 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 3.3V, 5V, 15V CMOS/TTL INPUTS COMPARATORS WITH HYSTERESYS AND PULL DOWN INTERNAL BOOTSTRAP DIODE OUTPUTS IN PHASE WITH INPUTS DEAD TIME AND INTERLOCKING FUNCTION Figure 1. Package SO8 ■ DIP8 Table 1. Order Codes Part Number L6388 L6388D L6388D013TR Package DIP8 SO8 SO8 in Tape & Reel ■ ■ ■ ■ ■ It has a Driver structure that enables to drive independent referenced N Channel Power MOS or IGBT. The Upper (Floating) Section is enabled to work with voltage Rail up to 600V. The Logic Inputs are CMOS/TTL comp [ ... ]

L6388 PDF Datasheet Download