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SFL320 Datasheet PDF

SiFirst SFL320

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.
Part No. SFL320
Datasheet SFL320 Download
Manufacturer SiFirst
Description High Power Factor Flyback PWM Controller
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SFL320 datasheet page 1 preview

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 wil
SFL320 page 2 preview SFL320 page 3 preview