L4985 - CCM PFC controller

Product Overview

STMicroelectronics

Datasheet Details

Part number	L4985
Manufacturer	STMicroelectronics
File Size	1.26 MB
Description	CCM PFC controller
Datasheet	L4985 Datasheet
Additional preview pages of the L4985 datasheet.

Product details

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.

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.

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Published: Mar 6, 2023 |