Rainbow Electronics MAX5958 - Manual (Page 5)

MAX5957/MAX5958
Triple PCI Express, Hot-Plug Controllers
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12V INPUT SUPPLY CURRENT
vs. TEMPERATURE
MAX5957 toc01
TEMPERATURE ( °C)
SUPPLY CURRENT (mA)
60 35 10 -15
0.92
0.94
0.96
0.98
1.00
1.02
1.04
1.06
1.08
1.10
0.90
-40 85
3.3VAUXIN SUPPLY CURRENT
vs. TEMPERATURE
MAX5957 toc02
TEMPERATURE ( °C)
3.3VAUXIN SUPPLY CURRENT (mA)
60 35 10 -15
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
-40 85
ON_ AND AUXON_ LOW-TO-HIGH THRESHOLD
VOLTAGE vs. TEMPERATURE
MAX5957 toc03
TEMPERATURE ( °C)
THRESHOLD VOLTAGE (V)
60 35 10 -15
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.20
-40 85
ON_ THRESHOLD
AUXON_ THRESHOLD
3.3VAUXO_ OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX5957 toc04
OUTPUT CURRENT (A)
OUTPUT VOLTAGE (V)
0.8 0.6 0.4 0.2 0.9 0.7 0.5 0.3 0.1
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
0 1.0
MAX5957 MAX5958
12G_ AND 3.3G_ GATE CHARGE
CURRENT vs. TEMPERATURE
MAX5957 toc05
TEMPERATURE ( °C)
GATE CHARGE CURRENT (
µ
A)
60 35 10 -15
4.80
4.85
4.90
4.95
5.00
5.05
5.10
5.15
5.20
4.75
-40 85
12G_
3.3G_
12G_ AND 3.3G_ GATE DISCHARGE
CURRENT vs. TEMPERATURE
MAX5957 toc06
TEMPERATURE ( °C)
GATE DISCHARGE CURRENT (
µ
A)
60 35 10 -15
160
165
170
175
180
150
155
-40 85
3.3G_
12G_
3.3VAUX INTERNAL SWITCH
MAXIMUM DROPOUT vs. TEMPERATURE
MAX5957 toc07
TEMPERATURE ( °C)
DROPOUT VOLTAGE (V)
60 35 10 -15
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0
-40 85
I LOAD = 550mA
MAX5958
I LOAD = 375mA
MAX5957
12V AND 3.3V CURRENT-LIMIT THRESHOLD
VOLTAGE vs. TEMPERATURE
MAX5957 toc08
TEMPERATURE ( °C)
12V AND 3.3V CURRENT-LIMIT THRESHOLD (mV)
60 35 10 -15
10
20
30
40
50
60
0
-40 85
12V CURRENT-LIMIT
THRESHOLD
3.3V CURRENT-LIMIT
THRESHOLD
AUXILIARY CURRENT LIMIT
vs. TEMPERATURE
MAX5957 toc09
TEMPERATURE ( °C)
AUXILIARY CURRENT (mA)
60 35 10 -15
0.10
0.30
0.20
0.40
0.50
0.60
0.70
0.80
0.90
1.00
0
-40 85
MAX5958
MAX5957
Typical Operating Characteristics
(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.)