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TOP260YN Datasheet, PDF (38/51 Pages) Power Integrations, Inc. – Enhanced EcoSmart™, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range
TOP252-262
t2
t1
HV
90%
90%
DRAIN
VOLTAGE
10%
0V
Figure 51. Duty Cycle Measurement.
120
100
80
60
40
Dynamic
Impedance
=
1
Slope
20
0
5
6
7
8
9
CONTROL Pin Voltage (V)
Figure 52. CONTROL Pin I-V Characteristic.
D=
t1
t2
PI-2039-033001
1.3
tLEB (Blanking Time)
1.2
1.1
1.0
0.9
0.8
0.7
IINIT(MIN)
0.6
0.5
0.4
0.3
0.2
0.1
0
0 1 23 45 678
Time (µs)
Figure 53. Drain Current Operating Envelope.
TOP254-258 Y, all E, L or M Packages (X and V Pins)
S1
470 Ω
5W
0-300 kΩ
40 V
0-15 V
5-50 V
470 Ω
S2
47 µF
0.1 µF
TOPSwitch-HX V
D
CONTROL
C
C
S4
F XS
S3
0-60 kΩ
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.
P or G Package (M Pin)
0-300 kΩ
5-50 V
S5
M
0-60 kΩ
TOP259-261 Y (X and V Pins)
0-300 kΩ
D
5-50 V CONTROL C
G XS
Figure 54. TOPSwitch-HX General Test Circuit.
38
Rev. H 06/13
PI-4738-071408
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