MIC2580A 查看數據表（PDF） - Micrel
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MIC2580A Datasheet PDF : 21 Pages
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MIC2580A
Timing Diagrams
/ON
+5V
5VOUT
0V
+3.3V
3VOUT
0V
+12V
12VOUT
0V
0V
M12VOUT
–12V
/PWRGD
/FAULT
/POR
tRESET
Figure 1. Controller Timing: Normal Cycle
Micrel, Inc.
/ON
+5V
5VOUT
0V
+3.3V
3VOUT
0V
+12V
12VOUT
Short Circuit
0V
0V
M12VOUT
–12V
/PWRGD
/FAULT
tSTART
/POR
Figure 2. Controller Timing: Enable Into Short
/ON
+5V
5VOUT
0V
+3.3V
3VOUT
0V
+12V
12VOUT
Fault
Circuit Breaker
Reset
0V
0V
M12VOUT
–12V
/PWRGD
/FAULT
Figure 3. Controller Timing: Short on 5V
VIN
+5V
/EPWRGD
0V
t/good
}1V
tgood
VPGTH
Figure 4. Early Power Good Response Time
MIC2580A
6
February 2005
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