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SG1543 Datasheet(PDF) 5 Page - Microsemi Corporation

Part # SG1543
Description  POWER SUPPLY OUTPUT SUPERVISORY CIRCUIT
Download  6 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

SG1543 Datasheet(HTML) 5 Page - Microsemi Corporation

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Rev 1.1a
Copyright
© 1994
11861 Western Avenue
∞ Garden Grove, CA 92841
5
(714) 898-8121
∞ FAX: (714) 893-2570
FIGURE 10 - SENSING MULTIPLE SUPPLY VOLTAGES
FIGURE 11 - OVERCURRENT SHUTDOWN
FIGURE 9 - TYPICAL APPLICATION CIRCUIT
The values for the external components are
determined as follows:
Current limit input threshold, V
TH
C
S is determined by the current loop dynamics
Peak current to load, I
P
Short circuit current, I
SC =
Low output voltage limit, V
O (Low) =
High output voltage limit, V
O
(High) =
Voltage sensing delay, t
D = 10,000 CD
SCR trigger power limiting resistor, R
G >
1000
R
1
V
TH
R
SC
V
O
R
SC
R
2
R
2+R3
+
()
V
TH
R
SC
2.5 (R
4+R5+R6)
R
5+R6
2.5 (R
4+R5+R6)
R
6
V
IN
- 5
0.2
APPLICATION INFORMATION (continued)


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