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SFL669 - High Precision AC/DC PSR Power Switch

General Description

SFL669 is a high precision AC/DC offline PSR (Primary Side Regulation) power switch for LED luminaries.

Key Features

  • Built-in 600V Power MOSFET.
  • 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.

📥 Download Datasheet

Datasheet Details

Part number SFL669
Manufacturer SiFirst
File Size 533.64 KB
Description High Precision AC/DC PSR Power Switch
Datasheet download datasheet SFL669 Datasheet

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Other Datasheets by SiFirst

Part Number Description
SFL668 High Precision AC/DC PSR Controller
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Softwin swAides SFL669 High Precision AC/DC PSR Power Switch for LED Driver FEATURES ◆ Built-in 600V Power MOSFET ◆ 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 ◆ Cycle-by-Cycle Current Limiting ◆ Built-in Leading Edge Blanking (LEB) ◆ VDD Under Voltage Lockout (UVLO) ◆ Output Over Voltage Protection ◆ VDD OVP & Clamp GENERAL DESCRIPTION SFL669 is a high precision AC/DC offline