L4985

L4985 Datasheet CCM PFC controller with high voltage startup Features Peak current mode CCM-operated 800 V high voltage startup with integrated input voltage sensing Active input filter capacitor discharge Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM) Extremely few external components Protections: feedback loop failure, OVP, OCP, inductor saturation, brown-in, brownout (compliant to medical SMPS standards) Inductor current sense Disable and low consumption function In-rush current monitoring Soft-start for smooth startup 1.2% (@ Tj = 25 °C) internal reference voltage 65 kHz (A version) and 130 kHz (B version) switching frequency SO8 package Product status link L4985 L4985A L4985B L4985ATR L4985BTR Product summary Order codes Package Packaging L4985A Tube L4985B Tube L4985ATR SO-8 Tape and reel L4985BTR Tape and reel Application PFC pre-regulators for: – IEC61000-3-2 and JEIDA-MITI compliant SMPS in excess of 1 kW – Desktop PC, server, web server, game console – High power LED luminaries – Industrial and medical SMPS according to IEC 60601-1-2 Description The L4985 is a peak current-mode PFC controller for boost converter with a proprietary multiplier “emulator” which in addition to the innovative THD optimizers guarantee very low Total Harmonic Distortion (THD) performance in all operating conditions. The device comes in a pin SO package and offers a high performance/ low...