FSQ0365(2007_05) Просмотр технического описания (PDF) - Fairchild Semiconductor

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FSQ0365
(Rev.:2007_05)

Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter - Low EMI and High Efficiency

Fairchild Semiconductor 

Comparison Between FSDM0x65RNB and FSQ-Series

Function

Operation method

EMI reduction

FSDM0x65RNB

Constant frequency

PWM

Frequency

modulation

Burst-mode operation Fixed burst peak

Protection

FSQ-Series

FSQ-Series Advantages

Valley switching

operation

„ Improved efficiency by valley switching

„ Reduced EMI noise

Valley switching &

inherent frequency

modulation

„ Reduce EMI noise by two ways

„ Improved standby power by valley switch-

ing also in burst-mode

Advanced burst-mode „ Because the current peak during burst

operation is dependent on VFB, it is easier

to solve audible noise

AOCP

„ Improved reliability through precise abnor-

mal over-current protection

© 2006 Fairchild Semiconductor Corporation

FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4

8

www.fairchildsemi.com

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