SG2543 Microsemi Corporation, SG2543 Datasheet - Page 5

• Manufacturer Part Number: SG2543
• Description: Power Supply Output Supervisory Circuit
• Manufacturer: Microsemi Corporation

11/91 Rev 1.1 2/94
Copyright
APPLICATION INFORMATION
1994
FIGURE 9 - TYPICAL APPLICATION CIRCUIT
(continued)
FIGURE 10 - SENSING MULTIPLE SUPPLY VOLTAGES
FIGURE 11 - OVERCURRENT SHUTDOWN
5
The values for the external components are
determined as follows:
Current limit input threshold, V
C
Peak current to load, I
Short circuit current, I
Low output voltage limit, V
High output voltage limit, V
Voltage sensing delay, t
SCR trigger power limiting resistor, R
S
SG1543/SG2543/SG3543
is determined by the current loop dynamics
11861 Western Avenue
SC
P
L
=
D
INFINITY Microelectronics Inc.
[phone]
R
V
= 10,000 C
V
R
O
TH
O
SC
TH
SC
(Low) =
(High) =
TH
+
R
V
1000
Garden Grove, CA 92841
SC
O
R
2.5 (R
1
2.5 (R
D
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>
R
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V
R
2
IN
0.2
R
+R
5
4
+R
+R
2
4
R
- 5
+R
3
6
)
6
5
+R
5
+R
6
)
6
)