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SF5922 Datasheet High Precision Primary Side Regulation (psr) Cv/cc Power Switch

Manufacturer: SiFirst

Overview: SF5922 High Precision Primary Side Regulation (PSR) CV/CC Power.

Datasheet Details

Part number SF5922
Manufacturer SiFirst
File Size 328.88 KB
Description High Precision Primary Side Regulation (PSR) CV/CC Power Switch
Datasheet SF5922-SiFirst.pdf

General Description

SF5922 is a high performance, highly integrated DCM (Discontinuous Conduction Mode) Primary Side Regulation (PSR) power switch for offline small power converter applications.

SF5922 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

  • Built-in 600V Power MOSFET.
  • Low Standby Power Under 30mW, Easily to Pass Energy Star EPS2.0.
  • Primary Side Regulation (PSR) without TL431 and Opto-Coupler.
  • ± 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.
  • Built-in Control Loop Compensation in CV Mode.
  • All Pins Floating Pr.

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SF5922 Distributor