Rainbow Electronics MAX5960 - Manual (Page 15)

MAX5959/MAX5960
Quad PCI Express, Hot-Plug Controllers
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5 μA
12S_-
12G_
12S_+
54mV 108mV R SENSE
150 μA
10 μA
100 μA
-
+
-
+
10 μA
120mA
5 μA
3.3S_-
3.3G_
3.3S_+
20mV 40mV
150 μA
3.3AUXO
PRES-DET_ FON_ AUXON_
UVLO
V REF
ON_
R SENSE
-
+
-
+
10 μA
150mA
CHARGE
PUMP
-
+
R TIM
TIM
IN OUT 12VIN PWRGD_ FAULT_
R PORADJ
PORADJ
DEBOUNCE
FAST
OSCILLATOR
CONTROL LOGIC
MAIN-CHANNEL
CONTROL LOGIC
AUX-CHANNEL
INPUT COMPARATOR AND
CHIP CONTROL LOGIC
t FAULT
t POR
OSCILLATOR
MAX5959
BIAS, REFERENCES,
AND UVLO
CONTROL LOGIC
MAIN-CHANNEL
CONTROL LOGIC
AUX-CHANNEL
CHARGE
PUMP
100 μA
Figure 1. Single-Channel Internal Block Diagram