max5957letnt Maxim Integrated Products, Inc., max5957letnt Datasheet - Page 10

• Manufacturer Part Number: max5957letnt
• Description: Triple Pci Express, Hot-plug Controllers
• Manufacturer: Maxim Integrated Products, Inc.

Triple PCI Express, Hot-Plug Controllers
(V
OUTPUT_ = OPEN, INPUT_ = PRES-DET_ = PGND = GND. See the Typical Application Circuit .)
10
12VIN
______________________________________________________________________________________
= V
10V/div
10V/div
5V/div
5V/div
5V/div
5V/div
12S_+
5V/div
5V/div
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
PRESENT-DETECT (ON/OFF) OPERATION
0
= 12V, V
FORCED-ON (ON/OFF) OPERATION
100
200 300 400 500
POWER-ON-RESET TIME
vs. PORADJ RESISTOR
3.3S_+
R
PORADJ
4ms/div
4ms/div
= V
(kΩ)
600 700
3.3S_-
800
= V
MAX5957 toc35
MAX5957 toc37
900
3.3AUXIN
1000
Typical Operating Characteristics (continued)
12V OUTPUT
VOLTAGE
12V OUTPUT
VOLTAGE
3.3V OUTPUT
VOLTAGE
PWRGD_
PRES-DET_
3.3V OUTPUT
VOLTAGE
PWRGD_
FON_
= V
ON_
= V
AUXON_
= V
10V/div
5V/div
5V/div
5V/div
200
180
160
140
120
100
FON_
80
60
40
20
0
DEBOUNCED INPUT/OUTPUT OPERATION
0
t
FAULT
= 3.3V, PWRGD_ = FAULT_ = PORADJ = TIM =
FORCED-ON (ON/OFF) OPERATION
200
TIME DELAY vs. TIM RESISTOR
400
R
10ms/div
40ms/div
TIM
(kΩ)
600
800
MAX5957 toc36
MAX5957 toc38
1000
12V OUTPUT
VOLTAGE
3.3V AUXO_
OUTPUT VOLTAGE
PWRGD_
FON_
INPUT_
2V/div
OUTPUT_
2V/div