This part is a kind of semiconductor called L6599.

Function of this product has High-voltage resonant controller.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

L6599 High-voltage resonant controller Not for new design Features ■ 50 % duty cycle, variable frequency control of resonant half-bridge ■ High-accuracy oscillator ■ Up to 500 kHz operating frequency ■ Two-level OCP: frequency-shift and latched shutdown ■ Interface with PFC controller ■ Latched disable input ■ Burst-mode operation at light load ■ Input for power-ON/OFF sequencing or brownout protection ■ Non-linear soft-start for monotonic output voltage rise ■ 600 V-rail compatible high-side gate driver with integrated bootstrap diode and high dV/dt immunity ■ -300/800 mA high-side and low-side gate drivers with UVLO pull-down ■ DIP-16, SO-16N packages Figure 1. Block diagram DIP-16 SO-16N Table 1. Order code Order codes Package L6599D SO-16N L6599DTR S [ ... ]

L6599 PDF Datasheet Download