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SFL668 - High Precision AC/DC PSR Controller

General Description

SFL668 is a high precision AC/DC offline PSR (Primary Side Regulation) controller for LED luminaries.

Key Features

  • Primary Side Regulation (PSR) Control, No Secondary Feedback Circuit Required.
  • 1% Precision (@Tj=25 ℃) Internal Reference Voltage for Constant Current (CC) Control.
  • Wide VDD Range (10 to 30V) Eases Flexible LED System Design.
  • Precision LED Output Voltage Clamp.
  • Compensate for Line Voltage Variation and Transformer Inductance Tolerance.
  • Built-in Soft Start.
  • All Pins Floating Protection.
  • LED Open/Short Circuit Protection.
  • PFM Control Eases EMI Design.

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Datasheet Details

Part number SFL668
Manufacturer SiFirst
File Size 278.30 KB
Description High Precision AC/DC PSR Controller
Datasheet download datasheet SFL668 Datasheet

Full PDF Text Transcription for SFL668 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for SFL668. For precise diagrams, and layout, please refer to the original PDF.

Softwin swAides SFL668 High Precision AC/DC PSR Controller for LED Driver FEATURES ◆ Primary Side Regulation (PSR) Control, No Secondary Feedback Circuit Required ◆ 1% Pr...

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gulation (PSR) Control, No Secondary Feedback Circuit Required ◆ 1% Precision (@Tj=25 ℃) Internal Reference Voltage for Constant Current (CC) Control ◆ Wide VDD Range (10 to 30V) Eases Flexible LED System Design ◆ Precision LED Output Voltage Clamp ◆ Compensate for Line Voltage Variation and Transformer Inductance Tolerance ◆ Built-in Soft Start ◆ All Pins Floating Protection ◆ LED Open/Short Circuit Protection ◆ PFM Control Eases EMI Design ◆ Cycle-by-Cycle Current Limiting ◆ Built-in Leading Edge Blanking (LEB) ◆ VDD Under Voltage Lockout (UVLO) ◆ Output Over Voltage Protection ◆ VDD OVP & Clamp APPLICATIONS ◆ LED Lumina

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