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SF5580 - PWM Controller

Description

SF5580 is a high performance, highly integrated current mode PWM controller for medium to large offline flyback po

Features

  • Proprietary HV-mWTM to Achieve Less than 50mW Standby Power.
  • Proprietary η-BalanceTM Control to Boost Light Load Efficiency.
  • Proprietary “Zero OCP/OPP Recovery Gap” Control.
  • Latch Plug-off Protection with External Triggering.
  • Fixed 65KHz Switching Frequency.
  • Built-in Soft Start Function.
  • Pin Floating Protection.
  • Frequency Reduction and Burst Mode Control for Energy Saving.
  • Current Mode Control.
  • Built-in Frequency Shuffling.
  • Built-in Synchro.

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Datasheet preview – SF5580

Datasheet Details

Part number SF5580
Manufacturer SiFirst
File Size 77.81 KB
Description PWM Controller
Datasheet download datasheet SF5580 Datasheet
Additional preview pages of the SF5580 datasheet.

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Full PDF Text Transcription

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SF5580 HV-mWTM、η-BalanceTM PWM Controller Fixed 65KHz Fsw FEATURES ◆ Proprietary HV-mWTM to Achieve Less than 50mW Standby Power ◆ Proprietary η-BalanceTM Control to Boost Light Load Efficiency ◆ Proprietary “Zero OCP/OPP Recovery Gap” Control ◆ Latch Plug-off Protection with External Triggering ◆ Fixed 65KHz Switching Frequency ◆ Built-in Soft Start Function ◆ Pin Floating Protection ◆ Frequency Reduction and Burst Mode Control for Energy Saving ◆ Current Mode Control ◆ Built-in Frequency Shuffling ◆ Built-in Synchronous Slope Compensation ◆ Cycle-by-Cycle Current Limiting ◆ Leading Edge Blanking (LEB) ◆ Constant Power Limiting ◆ Audio Noise Free Operation ◆ VDD UVLO, OVP & Clamp APPLICATIONS Offline AC/DC Flyback Converter for ◆ AC/DC Adaptors ◆ Open-frame SMPS ◆ Print Power, Scanners,
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