Seagate Cheetah T10 SAS ST3146755SS Product Manual page 30

Table 3:
ST3146755SS
Voltage
Regulation
Avg idle current DCX
Maximum starting current
(peak DC) DC
(peak AC) AC
Delayed motor start (max) DC 3σ
Peak operating current:
Typical DCX
Maximum DC
Maximum (peak) DC
0.15A DC and 0.2A AC 12V max start current margin added..
Table 4:
ST373355SS
Voltage
Regulation
Avg idle current DCX
Maximum starting current
(peak DC) DC
(peak AC) AC
Delayed motor start (max) DC 3σ
Peak operating current:
Typical DCX
Maximum DC
Maximum (peak) DC
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
24
DC power requirements
ST3146755SS
1.5 Gbit mode
Notes (Amps)
+5V
[5] ±5%
[1] [6] 0.80
3σ [3] 0.87
3σ [3] 1.20
[1] [4] 0.64
[1] 0.78
3σ [1] 0.78
3σ 1.60
DC power requirements
ST373355SS
1.5 Gbit mode
Notes (Amps)
+5V
[5] ±5%
[1] [6] 0.78
3σ [3] 0.84
3σ [3] 1.18
[1] [4] 0.66
[1] 0.75
3σ [1] 0.77
3σ 1.50
ST3146755SS
3 Gbit mode
(Amps) (Amps)
+12V [2] +5V
±5% [2] ±5%
0.57 0.78
2.12 0.87
3.49 1.21
0.03 0.68
0.76 0.81
0.78 0.82
2.54 1.62
ST373355SS
3 Gbit mode
(Amps) (Amps)
+12V [2] +5V
±5% [2] ±5%
0.44 0.77
1.91 0.84
3.17 1.12
0.03 0.66
0.64 0.78
0.65 0.80
2.32 1.54
Cheetah T10 SAS Product Manual, Rev. A
(Amps)
+12V [2]
±5% [2]
0.57
1.93
3.45
0.03
0.76
0.78
2.62
(Amps)
+12V [2]
±5% [2]
0.44
1.91
3.23
0.03
0.63
0.66
2.32