Seagate ST3500620SS 用户手册
24
Barracuda ES.2 SAS Product Manual, Rev. E
[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
Degrees C ambient.
Degrees C ambient.
[2] For +12 V, a –10% tolerance is allowed during initial spindle start but must return to ±5% before reaching
7,200 RPM. The ±5% must be maintained after the drive signifies that its power-up sequence has been
completed and that the drive is able to accept selection by the host initiator.
completed and that the drive is able to accept selection by the host initiator.
[3] See +12V current profile in Figure 2.
Table 3:
ST3750630SS
DC power requirements
Notes
ST3750630SS
3 Gbit mode
(Amps)
(Amps)
Voltage
+5V
+12V [2]
Regulation
[5]
±5%
±5% [2]
Avg idle current DCX
[1] [6]
0.60
0.50
Maximum starting current
(peak DC) DC
3
σ
0.90
2.00
(peak AC) AC
3
σ
1.10
3.50
Delayed motor start (max) DC 3
σ
0.60
0.17
Peak operating current:
Typical DCX
0.62
0.78
Maximum DC
3
σ
0.74
0.82
Maximum (peak) DC
3
σ
1.15
1.75
Table 4:
ST3500620SS
DC power requirements
Notes
3 Gbit mode
(Amps)
(Amps)
Voltage
+5V
+12V [2]
Regulation
[5]
±5%
±5% [2]
Avg idle current DCX
[1] [6]
0.60
0.50
Maximum starting current
(peak DC) DC
3
σ
[3]
0.90
2.00
(peak AC) AC
3
σ
[3]
1.10
3.50
Delayed motor start (max) DC 3
σ
0.60
0.17
Peak operating current:
Typical DCX
[1]
0.62
0.78
Maximum DC
3
σ
[1]
0.74
0.82
Maximum (peak) DC
3
σ
1.15
1.75