max5957letnt Maxim Integrated Products, Inc., max5957letnt Datasheet - Page 6

• 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 .)
6
12VIN
10.20
10.15
10.10
10.05
10.00
9.95
9.90
9.85
9.80
_______________________________________________________________________________________
-40
= V
THRESHOLD vs. TEMPERATURE
12V UNDERVOLTAGE LOCKOUT
12S_+
-15
10V/div
= 12V, V
TEMPERATURE (°C)
5V/div
5V/div
5V/div
5V/div
10
TURN-ON DELAY 3.3V OUTPUT AND
3.3S_+
35
3.3V TURN-ON/TURN-OFF TIME
3.3V AUXILIARY OUTPUT
= V
60
3.3S_-
40ms/div
4ms/div
85
= V
3.3AUXIN
Typical Operating Characteristics (continued)
2.70
2.68
2.66
2.64
2.62
2.60
2.58
2.56
2.54
2.52
2.50
MAX5957 toc13
MAX5957 toc15
-40
3.3VAUXON UNDERVOLTAGE LOCKOUT
= V
THRESHOLD vs. TEMPERATURE
ON_
5V/div
PWRGD_
5V/div
3.3VAUXO_
OUTPUT VOLTAGE
3.3 INPUT,
3.3VAUXIN
3.3 OUTPUT VOLTAGE
PWRGD
3.3G_
3.3V OUTPUT
5V/div
3.3G_
10V/div
ON_
-15
TEMPERATURE (°C)
= V
10
AUXON_
35
= V
0A
0V
0V
0V
FON_
60
FAULT CONDITION ON 12V MAIN OUTPUT
3.3V AUXILIARY TURN-ON/TURN-OFF TIME
= 3.3V, PWRGD_ = FAULT_ = PORADJ = TIM =
85
(AUTORESTART OPTION)
10V/div
20V/div
5V/div
5V/div
R
100ms/div
LOAD
t
RESTART
40ms/div
STEP TO 1.5Ω
12V TURN-ON/TURN-OFF TIME
MAX5957 toc16
40ms/div
MAX5957 toc14
12V OUTPUT CURRENT
5A/div
12G_
20V/div
12V OUTPUT VOLTAGE
10V/div
FAULT_
5V/div
3.3AUXO_OUTPUT
VOLTAGE
2V/div
PWRGD_
2V/div
AUXON_
2V/div
MAX5957 toc12
12V OUTPUT
12G_
ON_
PWRGD_
VOLTAGE