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TOP254PN Datasheet(PDF) 38 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) 38 Page - Power Integrations, Inc.

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Rev. F 01/09
38
TOP252-262
www.powerint.com
Figure 51. Duty Cycle Measurement.
Figure 52. CONTROL Pin I-V Characteristic.
Figure 53. Drain Current Operating Envelope.
Figure 54. TOPSwitch-HX General Test Circuit.
PI-2039-033001
DRAIN
VOLTAGE
HV
0 V
90%
10%
90%
t2
t1
D =
t1
t2
120
100
80
40
20
60
0
56
7
8
9
CONTROL Pin Voltage (V)
1
Slope
Dynamic
Impedance
=
0.8
1.3
1.2
1.1
0.9
0.8
1.0
0
01
2
6
8
3
Time ( s)
45
7
0.7
0.6
0.5
0.4
0.3
0.2
0.1
IINIT(MIN)
tLEB (Blanking Time)
PI-4738-071408
5-50 V
5-50 V
S4
40 V
0.1
μF
47
μF
470
Ω
5 W
TOP254-258 Y, all E, L or M Packages (X and V Pins)
P or G Package (M Pin)
470
Ω
0-300 k
Ω
0-60 k
Ω
0-60 k
Ω
0-300 k
Ω
NOTES: 1. This test circuit is not applicable for current limit or output characteristic measurements.
2. For P, G and M packages, short all SOURCE pins together.
D
D
S
FX
C
V
M
C
CONTROL
TOPSwitch-HX
S1
S5
S3
0-15 V
S2
S
GX
C
CONTROL
TOP259-261 Y (X and V Pins)
5-50 V
0-300 k
Ω


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