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SF1565SG

SiFirst
Part Number SF1565SG
Manufacturer SiFirst
Description Highly Integrated Current Mode PWM Controller
Published Oct 11, 2014
Detailed Description SF1565 Highly Integrated Current Mode PWM Controller FEATURES ◆ Built-in Soft Start Function ◆ Very Low Startup Current ...
Datasheet PDF File SF1565SG PDF File

SF1565SG
SF1565SG

Overview
SF1565 Highly Integrated Current Mode PWM Controller FEATURES ◆ Built-in Soft Start Function ◆ Very Low Startup Current ◆ Frequency Reduction and Burst Mode Control for Energy Saving ◆ Built-in Frequency Shuffling ◆ Programmable Switching Frequency ◆ Built-in Synchronous Slope Compensation ◆ Cycle-by-Cycle Current Limiting ◆ Pins Floating Protection ◆ High Voltage CMOS Process with Excellent ESD Protection ◆ Current Mode Control ◆ Built-in Leading Edge Blanking (LEB) ◆ Constant Power Limiting ◆ Audio Noise Free Operation ◆ VDD OVP & Clamp ◆ VDD Under Voltage Lockout (UVLO) GENERAL DESCRIPTION SF1565 is a high performance, highly integrated current mode PWM controller for medium to large offline flyback converter applications.
In SF1565, the PWM switching is internally trimmed to tight range.
To improve EMI performance, the IC integrates frequency shuffling function to reduce conduction EMI emission of a power supply.
The IC also integrates Constant Power Limiting block to achieve cons...


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