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SFL320 - High Power Factor Flyback PWM Controller

General Description

SFL320 is a high power factor flyback PWM controller special for LED lighting applications.

The IC adopts transition mode (TM) operation for high efficiency and low EMI.

Key Features

  • Built-in Soft Start.
  • Very Low Startup Current.
  • Under Voltage Lockout with 7.7V Hysteresis.
  • VCC Over Voltage Protection (OVP).
  • Clear External EA Feedback Network before Power On.
  • Transition Mode (TM) Operation.
  • Highly Linear Analog Multiplier.
  • Proprietary “Frequency Adjusting” for Higher PF and Low THD.
  • 3.3us Min. OFF Time.
  • 270KHz Max Frequency Clamp.
  • Trimmed 1.5% Internal Voltage Reference.
  • Restart Timer for Stand-alone.

📥 Download Datasheet

Datasheet Details

Part number SFL320
Manufacturer SiFirst
File Size 434.63 KB
Description High Power Factor Flyback PWM Controller
Datasheet download datasheet SFL320 Datasheet

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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
SFL320 High Power Factor Flyback PWM Controller FEATURES ◆ Built-in Soft Start ◆ Very Low Startup Current ◆ Under Voltage Lockout with 7.7V Hysteresis ◆ VCC Over Voltage Protection (OVP) ◆ Clear External EA Feedback Network before Power On ◆ Transition Mode (TM) Operation ◆ Highly Linear Analog Multiplier ◆ Proprietary “Frequency Adjusting” for Higher PF and Low THD ◆ 3.3us Min. OFF Time ◆ 270KHz Max Frequency Clamp ◆ Trimmed 1.