Typical operating characteristics (continued) – Rainbow Electronics MAX5960 User Manual
Page 10
MAX5959/MAX5960
Quad PCI Express, Hot-Plug Controllers
10
______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
12VIN
= V
12S_+
= 12V, V
3.3S_+
= V
3.3S_-
= V
3.3AUXIN
= V
ON_
= V
AUXON_
= V
FON_
= 3.3V,
PWRGD_ = FAULT_ = PORADJ = TIM =
OUTPUT_ = OPEN, INPUT_ =
PRES-DET_ = PGND = GND. See the Typical Application Circuit.)
PRESENT-DETECT (ON/OFF) OPERATION
MAX5959 toc35
4ms/div
12V OUTPUT
VOLTAGE
PWRGD_
3.3V OUTPUT
VOLTAGE
PRES-DET_
10V/div
5V/div
5V/div
5V/div
FORCED-ON (ON/OFF) OPERATION
MAX5959 toc36
40ms/div
12V OUTPUT
VOLTAGE
PWRGD_
3.3V AUXO_
OUTPUT VOLTAGE
FON_
10V/div
5V/div
5V/div
5V/div
FORCED-ON (ON/OFF) OPERATION
MAX5959 toc37
4ms/div
12V OUTPUT
VOLTAGE
PWRGD_
3.3V OUTPUT
VOLTAGE
FON_
10V/div
5V/div
5V/div
5V/div
DEBOUNCED INPUT/OUTPUT OPERATION
MAX5959 toc38
INPUT_
2V/div
10ms/div
OUTPUT_
2V/div
POWER-ON-RESET TIME
vs. PORADJ RESISTOR
MAX5959 toc39
R
PORADJ
(k
Ω)
t
POR_HL
(ms)
900
800
600 700
200 300 400 500
100
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
0
0
1000
t
FAULT
TIME DELAY vs. TIM RESISTOR
MAX5959 toc40
R
TIM
(k
Ω)
t
FAULT
(ms)
800
600
200
400
20
40
60
80
100
120
140
160
180
200
0
0
1000