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FL7930CM Datasheet(PDF) 8 Page - Fairchild Semiconductor |
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FL7930CM Datasheet(HTML) 8 Page - Fairchild Semiconductor |
8 / 20 page © 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FL7930 • Rev. 1.0.0 8 Comparison of FL6961, FL7930B, and FL7930C Function FL6961 FL7930B FL7930C Advantages OVP Pin None Integrated None No External Circuit for Additional OVP Reduced Power Loss and BOM Cost Due to Additional OVP Circuit PFC Ready Pin None None Integrated No External Circuit for PFC Output UVLO Reduced Power Loss and BOM Cost Due to PFC Out UVLO Circuit Versatile Open-Drain Pin Frequency Limit None Integrated Integrated Abnormal CCM Operation Prohibited Abnormal Inductor Current Accumulation Can Be Prohibited AC Absent Detection None Integrated Integrated Increased System Reliability with AC On-Off Test Guaranteed Stable Operation at Short Electric Power Failure Soft-Start and Startup without Overshoot None Integrated Integrated Reduced Voltage and Current Stress at Startup Eliminates Audible Noise due to Unwanted OVP Triggering Control Range Compensation None Integrated Integrated Can Avoid Burst Operation at Light Load and High Input Voltage Reduced Probability of Audible Noise Due to the Burst Operation THD Optimizer External Internal Internal No External Resistor is Needed TSD None Integrated Integrated Stable and Reliable TSD Operation Converter Temperature Range Limited Range Comparison of FL7930B and FL7930C Function FL7930B FL7930C Remark RDY Pin None Integrated User Choice for the Use of Pin #2 FL7930B : OVP FL7930C : RDY OVP Pin Integrated None Control Range Compensation Integrated Integrated |
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