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TOP242F датащи(PDF) 19 Page - Power Integrations, Inc.

номер детали TOP242F
подробное описание детали  TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher
PDF  52 Pages
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производитель  POWERINT [Power Integrations, Inc.]
домашняя страница  http://www.powerint.com
Logo POWERINT - Power Integrations, Inc.

TOP242F датащи(HTML) 19 Page - Power Integrations, Inc.

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Figure 32. Line Sensing for Under-Voltage Only (Overvoltage
Disabled).
PI-2510-040501
DC
Input
Voltage
+
-
DM
S
C
VUV = RLS x IUV
For Value Shown
VUV = 100 VDC
RLS
6.2 V
2 M
Ω
22 k
Ω
CONTROL
Figure 33. Line Sensing for Overvoltage Only (Under-Voltage
Disabled). Maximum Duty Cycle will be reduced at
Low Line.
Figure 34. Externally Set Current Limit.
PI-2517-040501
DC
Input
Voltage
+
-
DM
S
C
For RIL = 12 kΩ
ILIMIT = 69%
CONTROL
RIL
See fig. 55 for other
resistor values (RIL)
For RIL = 25 kΩ
ILIMIT = 43%
to select different
ILIMIT values
PI-2516-040501
DC
Input
Voltage
+
-
DM
S
C
VOV = IOV x RLS
For Values Shown
VOV = 450 VDC
CONTROL
RLS
1N4148
2 M
Ω
30 k
Ω
Figure 30. Three Terminal Operation (MULTI-FUNCTION
Features Disabled).
PI-2508-081199
DC
Input
Voltage
+
-
D
S
C
CONTROL
M
C
DS
CD
S
S
SS
M
PI-2509-040501
DC
Input
Voltage
+
-
DM
S
C
VUV = IUV x RLS
VOV = IOV x RLS
For RLS = 2 MΩ
VUV = 100 VDC
VOV = 450 VDC
DCMAX@100 VDC = 78%
DCMAX@375 VDC = 38%
CONTROL
RLS
2 M
Ω
Typical Uses of MULTI-FUNCTION (M) Pin
Figure 35. Current Limit Reduction with Line Voltage.
PI-2518-040501
DC
Input
Voltage
+
-
DM
S
C
CONTROL
RIL
RLS
2.5 M
Ω
6 k
Ω
100% @ 100 VDC
63% @ 300 VDC
ILIMIT =
ILIMIT =
Figure 31. Line Sensing for Undervoltage, Over-Voltage and
Line Feed Forward.



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