lnk623 Power Integrations, Inc., lnk623 Datasheet - Page 7
lnk623
Manufacturer Part Number
lnk623
Description
Energy-efficient, Off-line Switcher With Accurate Primary-side Constant-voltage Cv Control
Manufacturer
Power Integrations, Inc.
Datasheet
1.LNK623.pdf
(20 pages)
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Figure 8.
www.powerint.com
Schematic Representation of Electrical Impact of Improper Layout.
PRI RTN
B+
impedance
Power currents
flow in signal
source trace
Voltage drops across trace impedance
Trace
may cause degraded performance
V
proximity of feedback trace
S
will couple noise into
Drain trace in close
feedback signal
Isource
signal source traces
CLAMP
currents flow in
Bias winding
PI-5267-111008
Line surge
currents can
flow through
device
LNK623-626
Rev. C 12/08
7
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