Datasheet4U Logo Datasheet4U.com

SFL629 - High Precision Offline PSR Power Switch

General Description

SFL629 is a high performance, cost effective, highly integrated DCM (Discontinuous Conduction Mode) Primary Side Regulation (PSR) power switch for offline LED

Key Features

  • Built-in Power BJT Switch.
  • Very Few External Components.
  • Built-in Load and AC Line CC Compensation.
  • 35KHz Frequency Clamping @ LED Short Circuit.
  • Primary Side Regulation (PSR) Control, No Secondary Feedback Circuit Required.
  • 2% Precision (@Tj=25 ℃) Internal Reference Voltage for Constant Current (CC) Control.
  • Precision LED Output Voltage Clamp.
  • Compensate for Transformer Inductance Tolerances and Line Voltage Variation.
  • Built-in Soft Start.
  • Pins.

📥 Download Datasheet

Datasheet Details

Part number SFL629
Manufacturer SiFirst
File Size 543.10 KB
Description High Precision Offline PSR Power Switch
Datasheet download datasheet SFL629 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
SFL630 Avalanche Rated N-MOSFET SSDI
SFL024-5 N-Channel Logic Level POWER MOSFET SSDI
SFL044J N-Channel Logic Level POWER MOSFET SSDI
SFL1060F 10.0 Amp Low Loss Ultrafast Rectifier SeCoS
SFL2J100A-C TVS SeCoS

Other Datasheets by SiFirst

Part Number Description
SFL668 High Precision AC/DC PSR Controller
SFL669 High Precision AC/DC PSR Power Switch
SFL678 AC/DC PSR Controller
SFL100 Constant Voltage and Constant Current Controller
SFL320 High Power Factor Flyback PWM Controller

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
SFL629 Cost Effective, High Precision Offline PSR Power Switch for LED Lighting FEATURES ◆ Built-in Power BJT Switch ◆ Very Few External Components ◆ Built-in Load and AC Line CC Compensation ◆ 35KHz Frequency Clamping @ LED Short Circuit ◆ Primary Side Regulation (PSR) Control, No Secondary Feedback Circuit Required ◆ 2% Precision (@Tj=25 ℃) Internal Reference Voltage for Constant Current (CC) Control ◆ Precision LED Output Voltage Clamp ◆ Compensate for Transformer Inductance Tolerances and Line Voltage Variation ◆ Built-in Soft Start ◆ Pins Floating Protection ◆ LED Open/Short Circuit Protection ◆ Cycle-by-Cycle Current Limiting ◆ Leading Edge Blanking (LEB) ◆ VDD Under Voltage Lockout (UVLO) ◆ Output Over Voltage Protection ◆ VDD Clamp APPLICATIONS ◆ AC/DC LED lighting GENERAL DESCRI