- l6599a d more results similar description - l6599ad more results about stmicroelectronics. l6599 highvoltage resonant controller 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. 1 description the l6599a is an improved revision of the previous l6599. january doc id 153/ 3535l6599aimproved high- voltage resonant controllerdatasheet production datafeatures datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs and other semiconductors. 1 l6599ad datasheet improved high- voltage resonant controller - stmicroelectronics l6599adtr it provides 50% complementary duty cycle: the high- side switch and the low- side switch are driven on/ off 180° out- of- phase for exactly the same time. l6599ad datasheet ( pdf) - stmicroelectronics preview pdf download html l6599ad datasheet ( pdf)stmicroelectronics description improved high- voltage resonant controller l6599ad datasheet ( html)stmicroelectronics similar part no. this is information on a product in full production. description the l6599a is an improved revision of the previous l6599. it is a l6599ad pdf double- ended controller specific to series- resonant half bridge topology.