FSDM0365RN Datasheet, PDF (7/22 Pages) Fairchild Semiconductor – Green Mode Fairchild Power Switch (FPSTM)

FSDL0365RN, FSDM0365RN
Comparison Between KA5x0365RN and FSDx0365RN
Function
Soft-Start
KA5x0365RN
not applicable
External Current Limit not applicable
Frequency Modulation not applicable
Burst Mode Operation not applicable
Drain Creepage at
Package
1,02mm
FSDx0365RN
15mS
Programmable of
default current limit
±2.0KHz @67KHz
±1.5KHz @50KHz
Yes-built into
controller
7.62mm
FSDx0365RN Advantages
• Gradually increasing current limit
during soft-start further reduces peak
current and voltage component
stresses
• Eliminates external components used
for soft-start in most applications
• Reduces or eliminates output
overshoot
• Smaller transformer
• Allows power limiting (constant over-
load power)
• Allows use of larger device for lower
losses and higher efficiency.
• Reduced conducted EMI
• Improve light load efficiency
• Reduces no-load consumption
• Transformer audible noise reduction
• Greater immunity to arcing as a result
of build-up of dust, debris and other
contaminants
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