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SF5920 Datasheet Cv/cc Controller

Manufacturer: SiFirst

Overview: SF5920 NC-Cap/PSRTM (Primary Side Regulation) CV/CC Controller.

Datasheet Details

Part number SF5920
Manufacturer SiFirst
File Size 211.71 KB
Description CV/CC Controller
Datasheet SF5920-SiFirst.pdf

General Description

SF5920 is a high performance, highly integrated DCM (Discontinuous Conduction Mode) Primary Side Regulation (PSR) controller for offline small power converter applications.

SF5920 uses Pulse Frequency Modulation (PFM) control to improve efficiency and eases system EMI design.

The IC dramatically lowers system cost by eliminating the opto-coupler and secondary control circuits.

Key Features

  • Low Standby Power Under 30mW, Easily to Pass Energy Star EPS2.0.
  • Proprietary NC-Cap/PSRTM (Primary Side Regulation) Control without External Compensation/Filtering Capacitor Needed.
  • ± 5% Constant Current (CC) and Constant Voltage (CV) Regulation at Universal AC Input.
  • Proprietary Cable Voltage Drop Compensation in CV Mode.
  • Compensate for Line Voltage Variation.
  • Compensate for Transformer Inductance Tolerances.
  • Pins Floating Protection.
  • PFM.

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SF5920 Distributor