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SF1565


Part Number SF1565
Manufacturer SiFirst
Title Highly Integrated Current Mode PWM Controller
Description SF1565 is a high performance, highly integrated current mode PWM controller for medium to large offline flyback converter applications. In SF1565,...
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 Vol...

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Datasheet SF1565 PDF File








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SF1560 : SF1560 is a high performance, highly integrated current mode PWM controller for medium to large offline flyback converter applications. In SF1560, 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 constant output power limit from 90VAC to 264VAC. Under light load conditions, a green mode function can continuously decrease the switching frequency. Under zero-load conditions, the power supply enters into burst mode and provides excellent efficiency without audio noise generated. This green mode func.

SF1560 : only. "Typical" parameters which may be included on WILLAS data sheets and/ or specifications can and do vary in different applications and actual performance may vary over time. WILLAS does not assume any liability arising out of the application or use of any product or circuit. This is the preliminary specification. WILLAS products are not designed, intended or authorized for use in medical, life-saving implant or other applications intended for life-sustaining or other related applications where a failure or malfunction of component or circuitry may directly or indirectly cause injury or threaten a life without expressed written approval of WILLAS. Customers using or selling WILLAS compon.

SF1565DP : 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 constant output power limit from 90VAC to 264VAC. Under light load conditions, a green mode function can continuously decrease the switching frequency. Under zero-load conditions, the power supply enters into burst mode and provides excellent efficiency without audio noise generated. This green mode func.

SF1565SG : 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 constant output power limit from 90VAC to 264VAC. Under light load conditions, a green mode function can continuously decrease the switching frequency. Under zero-load conditions, the power supply enters into burst mode and provides excellent efficiency without audio noise generated. This green mode func.

SF1565SGT : 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 constant output power limit from 90VAC to 264VAC. Under light load conditions, a green mode function can continuously decrease the switching frequency. Under zero-load conditions, the power supply enters into burst mode and provides excellent efficiency without audio noise generated. This green mode func.




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