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SFL320

SiFirst
Part Number SFL320
Manufacturer SiFirst
Description High Power Factor Flyback PWM Controller
Published Dec 19, 2018
Detailed Description SFL320 High Power Factor Flyback PWM Controller FEATURES ◆ Built-in Soft Start ◆ Very Low Startup Current ◆ Under Volt...
Datasheet PDF File SFL320 PDF File

SFL320
SFL320

Overview
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.
5% Internal Voltage Reference ◆ Restart Timer for Stand-alone Applications ◆ Cycle-by-Cycle Current Limiting ◆ Built-in Leading Edge Blanking (LEB) ◆ Audio Noise Free Operation ◆ 10V to 32V Wide Range of VCC Voltage ◆ 800mA Drive Capability APPLICATIONS ◆ LED Lighting Application ◆ Single Stage High PF Flyback AC/DC SMPS 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.
SFL320 wil...


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