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TOP254PN Datasheet(PDF) 28 Page - Power Integrations, Inc.

Part No. TOP254PN
Description  Enhanced EcoSmart®, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range
Download  48 Pages
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Maker  POWERINT [Power Integrations, Inc.]
Homepage  http://www.powerint.com
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TOP254PN Datasheet(HTML) 28 Page - Power Integrations, Inc.

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Rev. F 01/09
28
TOP252-262
www.powerint.com
Figure 46. Layout Considerations for TOPSwitch-HX Using P-Package.
Figure 47. Layout Considerations for TOPSwitch-HX Using M-Package.
+
-
DC
Out
+
-
HV
PI-4753-070307
Y1-
Capacitor
C6
Isolation Barrier
Output
Rectifier
R1
R2
JP1
J1
C1
U1
R3
C2
R4
D1
C4
C3
R8
D2
VR2
C5
C9
D3
C7
L1
C8
J2
JP2
R12
R11
R10
U3
R9
C10
T1
Output Filter
Capacitor
Input Filter
Capacitor
Maximize hatched copper
areas (
) for optimum
heat sinking
U2
Transformer
D
S
S
S
S
C
M
Optional PCB slot for external
heatsink in contact with
SOURCE pins
+
- DC
Out
+
-
HV
PI-4752-070307
Isolation Barrier
Output
Rectifier
R1
JP1
J1
C1
U1
R5
C2
R6
D1
C4
R7
C3
R8
R9
D2
C5
D3
C7
L1
C8
J2
JP2
C9
R15
U3
R16
R17
R14
R12
T1
R13
VR2
R2
R3
R4
Output Filter
Capacitor
Input Filter
Capacitor
Optional PCB slot for external
heatsink in contact with
SOURCE pins
Maximize hatched copper
areas (
) for optimum
heat sinking
S
S
D
C
X
V
S
S
S
U2
Y1-
Capacitor
C6
Transformer


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