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Block Diagrams

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Part Number   Status  
Sub Family   		Duty Cycle (max) (%)   Vref (V)   Practical Operating Frequency (max) (MHz)   Operating Supply Current (mA)   Operating Supply (max) (V)   UVLO Thresholds On/Off (V)   Startup Current (mA)   Operating Temp Range (Celsius)   Rating   Priority (type 2)   Vref tol (%)   Pin/Package   Approx. Price (US$)  
Description  
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UCC28070 ACTIVE POWER FACTOR CORRECTION ICS 99 6 0.3 20 21 10.2/9.2 20 -40 to 125,-40 to 85 Catalog 1 3 20SOIC ,  20TSSOP 1.95 Two-Phase Interleaved CCM PFC Controller
UCC38050 ACTIVE POWER FACTOR CORRECTION ICS 0.2 4 18 16/10 0.075 0 to 70 Catalog 1 8PDIP ,  8SOIC 0.75 Transition Mode PFC Controller
UCC38051 ACTIVE POWER FACTOR CORRECTION ICS 0.2 4 18 16/10 0.075 0 to 70 Catalog 1 8PDIP ,  8SOIC 0.6 PFC Controller for low to medium power applications requiring compliance with IEC 1000-3-2
UCC3817 ACTIVE POWER FACTOR CORRECTION ICS 100 7.5 0.25 4 18 16/10 0.15 0 to 70 Catalog 1 1.5 16PDIP ,  16SOIC 1.25 BiCMOS Power Factor Preregulator