Seagate ST3300555SS Manuale Utente
24
Cheetah T10 SAS Product Manual, Rev. A
0.15A DC and 0.2A AC 12V max start current margin added..
0.15A DC and 0.2A AC 12V max start current margin added.
[1]
Measured with average reading DC ammeter or equivalent sampling scope. Instantaneous +12V current
peaks will exceed these values. Power supply at nominal voltage. N (number of drives tested) = 6, 35
peaks will exceed these values. Power supply at nominal voltage. N (number of drives tested) = 6, 35
Table 3:
ST3146755SS
DC power requirements
Notes
ST3146755SS
1.5 Gbit mode
ST3146755SS
3 Gbit mode
(Amps)
(Amps)
(Amps)
(Amps)
Voltage
+5V
+12V [2]
+5V
+12V [2]
Regulation
[5]
±5%
±5% [2]
±5%
±5% [2]
Avg idle current DCX
[1] [6]
0.80
0.57
0.78
0.57
Maximum starting current
(peak DC) DC
3
σ
[3]
0.87
2.12
0.87
1.93
(peak AC) AC
3
σ
[3]
1.20
3.49
1.21
3.45
Delayed motor start (max) DC
3
σ
0.64
0.03
0.68
0.03
Peak operating current:
Typical DCX
[1]
0.78
0.76
0.81
0.76
Maximum DC
3
σ
[1]
0.78
0.78
0.82
0.78
Maximum (peak) DC
3
σ
1.60
2.54
1.62
2.62
Table 4:
ST373355SS
DC power requirements
Notes
ST373355SS
1.5 Gbit mode
ST373355SS
3 Gbit mode
(Amps)
(Amps)
(Amps)
(Amps)
Voltage
+5V
+12V [2]
+5V
+12V [2]
Regulation
[5]
±5%
±5% [2]
±5%
±5% [2]
Avg idle current DCX
[1] [6]
0.78
0.44
0.77
0.44
Maximum starting current
(peak DC) DC
3
σ
[3]
0.84
1.91
0.84
1.91
(peak AC) AC
3
σ
[3]
1.18
3.17
1.12
3.23
Delayed motor start (max) DC
3
σ
0.66
0.03
0.66
0.03
Peak operating current:
Typical DCX
[1]
0.75
0.64
0.78
0.63
Maximum DC
3
σ
[1]
0.77
0.65
0.80
0.66
Maximum (peak) DC
3
σ
1.50
2.32
1.54
2.32