MAX5957 MAXIM [Maxim Integrated Products], MAX5957 Datasheet - Page 14

• Manufacturer Part Number: MAX5957
• Description: Triple PCI Express, Hot-Plug Controllers
• Manufacturer: MAXIM [Maxim Integrated Products]

Triple PCI Express, Hot-Plug Controllers
Figure 1. Single-Channel Internal Block Diagram
14
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CONTROL LOGIC
CONTROL LOGIC
MAIN-CHANNEL
AUX-CHANNEL
OSCILLATOR
t
FAULT
t
POR
R
TIM
TIM
ON_
BIAS, REFERENCES,
INPUT COMPARATOR AND
PORADJ
AND UVLO
R
PORADJ
CHIP CONTROL LOGIC
AUXON_
UVLO
FON_
OSCILLATOR
DEBOUNCE
IN
PRES-DET_
FAST
OUT
MAX5957
12VIN
CONTROL LOGIC
CONTROL LOGIC
MAIN-CHANNEL
CHARGE
AUX-CHANNEL
PUMP
PWRGD_
FAULT_
V
REF
108mV
40mV
+
-
+
-
+
-
CHARGE
100µA
PUMP
+
-
+
-
54mV
20mV
120mA
10µA
150mA
A
10µA
A
0 µ
µ
1 0
1 0
5µA
5µA
150µA
150µA
12S_+
12G_
3.3G_
12S_-
3.3S_+
3.3S_-
3.3AUXO
R
R
SENSE
SENSE