Fairchild FPS FSDH0265RN, Руководство пользователя

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FSDH321, FSDL321
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Comparison Between FSDM311 and FSDx321
Function FSDM311 FSDx321 FSDx321 Advantages
Soft-Start 15ms 15ms
(same for both devices)
• Gradually increasing current limit
during soft-start further reduces peak
current and voltage stresses
• Eliminates external components used
for soft-start in most applications
• Reduces or eliminates output
overshoot
External Current Limit not applicable Programmable of
default current limit • Smaller transformer
• Allows power limiting (constant over-
load power)
• Allows use of larger device for lower
losses and higher efficiency.
Frequency Modulation not applicable ±3.0KHz @100KHz
±1.5KHz @50KHz • Reduces conducted EMI
Burst Mode Operation Built into controller Built into controller (same for both devices)
• Improves light load efficiency
• Reduces power consumption at no-
load
• Transformer audible noise reduction
Drain Creepage at
Package 7.62mm 7.62mm (same for both devices)
• Greater immunity to arcing provoked
by dust, debris and other contami-
nants