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| 型號(hào)： | TOPP244R |
| 廠商： | Power Integrations, Inc. |
| 英文描述： | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
| 中文描述： | 家庭擴(kuò)展的電源，設(shè)計(jì)靈活，集成的離線切換 |
| 文件頁(yè)數(shù)： | 18/48頁(yè) |
| 文件大小： | 771K |
| 代理商： | TOPP244R |
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TOP242-249
18
E
7/01
August 8, 2000
Typical Uses of LINE-SENSE (L) and EXTERNAL CURRENT LIMIT (X) Pins (cont.)
Figure 28. Line-Sensing and Externally Set Current Limit.
PI-2640-040501
DC
Input
Voltage
+
-
D
S
C
CONTROL
L
ON/OFF
47 k
Q
can be an optocoupler
output or can be replaced by
a manual switch.
300 k
Q
R
Figure 29. Active-on Remote ON/OFF.
X
PI-2629-040501
DC
Input
Voltage
+
-
D
S
C
CONTROL
L
R
IL
12 k
R
LS
2 M
V
UV
= I
UV
x R
LS
V
OV
=
I
OV
x
R
LS
For R
LS
= 2 M
V
UV
= 100 VDC
V
OV
= 450 VDC
DC
MAX
@100 VDC = 78%
DC
MAX
@375 VDC = 38%
For R
IL
= 12 k
I
LIMIT
= 69%
See fig. 55 for other
resistor values (R
IL
)
to select different I
LIMIT
values
相關(guān)PDF資料 |
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| TOP249R | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
| TOP249Y | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
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| TOP242G | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
| TOP242P | Family Extended Power, Design Flexible,Integrated Off-line Switcher |
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