FAN7930MX 데이터 시트보기 (PDF) - Fairchild Semiconductor

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FAN7930MX

Critical Conduction Mode PFC Controller

Fairchild Semiconductor 

Comparison of FAN7530 and FAN7930

Function

PFC Ready Pin

Frequency Limit

AC Absent

Detection

Soft-Start and

Overshoot-less

THD Optimizer

TSD

FAN7530

None

None

None

None

External

None

FAN7930

FAN7930 Advantages

ƒ No External Circuit for PFC Output UVLO

Integrated

ƒ Reduction of Power Loss and BOM Cost Caused

by PFC Out UVLO Circuit

ƒ Open-Drain Pin has Versatile Uses

ƒ Abnormal CCM Operation Prohibited

Integrated

ƒ Abnormal Inductor Current Accumulation can be

Prohibited

ƒ Increase System Reliability with AC On-Off Test

Integrated

ƒ Guarantee Stable Operation at Short Electric

Power Failure

ƒ Reduce Voltage and Current Stress at Startup

Integrated

ƒ Eliminate Audible Noise due to Unwanted OVP

Triggering

Internal

ƒ No External Resistor is Needed

140°C with 60°C ƒ Stable and Reliable TSD Operation

Hysteresis

ƒ Converter Temperature Range Limited Range

© 2010 Fairchild Semiconductor Corporation

FAN7930 • Rev. 1.0.1

7

www.fairchildsemi.com

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