The TOLL package offers improved thermal and switching performance thanks to Kelvin Source configuration and lower parasitic source inductance. TOLL offers Moisture Sensitivity Level 1 (MSL 1). onsemi supplies silicon carbide solutions with complete vertical integration capability, including SiC boule growth, substrate, epitaxy, device fabrication, best-in-class integrated modules, and discrete package solutions. NCP1681 - Totem Pole Continuous Conduction Mode (CCM) / Multi-Mode (CrM-CCM) Power Factor Correction Controller NCP1681 is the latest mixed-signal controller dedicated to bridgeless totem-pole PFC (TP PFC) topology. By eliminating the lossy input diode bridge of classical PFC topology, TP PFC improves efficiency by about 2%, enabling ultimate PFC efficiency of 99%.