Datasheet

MAX5946
Dual PCI Express, Hot-Plug
Controller
______________________________________________________________________________________ 11
Typical Operating Characteristics (continued)
(V
12VIN
= V
12SA+
= 12V, V
3.3VAUXIN
= V
3.3S_+
= V
ON_
= V
AUXON_
= V
INPUT_
= 3.3V, PRES-DET_ = GND, FON_ = PORADJ = TIM =
float, FAULT_ = 10kΩ to 3.3VAUXIN, PWRGDA = 10kΩ to 3.3VAUXO_, T
A
= +25°C, unless otherwise noted, see the Typical
Application Circuit.)
DEBOUNCED ON/OFF OPERATION
MAX5946 toc40
INPUT_
2V/div
10ms/div
OUTPUT_
2V/div
POWER-ON-RESET TIME
vs. PORADJ RESISTOR
MAX5946 toc41
R
PORADJ
(kΩ)
t
POR_HL
(ms)
900800600 700200 300 400 500100
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
0
01000
t
FAULT
TIME DELAY vs. TIM RESISTOR
MAX5946 toc42
R
TIM
(kΩ)
t
FAULT
(ms)
900800600 700200 300 400 500100
20
40
60
80
100
120
140
160
180
200
0
01000