Seagate ST4000NM0063 ユーザーズマニュアル
Constellation ES Series SAS Product Manual, Rev. F
25
[1]
Measured with average reading DC ammeter.
[2]
Instantaneous +12V current peaks will exceed these values.
[3]
Power supply at nominal voltage. N (number of drives tested) = 6, 35 Degrees C ambient.
[4]
For +12 V, a –10% tolerance is allowed during initial spindle start but must return to ±5% before reaching
7200 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.
7200 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.
Table 4:
500GB drive (Standard & SED model)
DC power requirements
Notes
3.0Gb mode
6.0Gb mode
(Amps)
(Amps)
Voltage
+5V
+5V
+12V [4]
Regulation
[5]
±5%
±5% [2]
±5%
±5% [2]
Avg idle current DCX
[1] [7]
0.42
0.21
0.43
0.21
Advanced idle current
Idle_A
0.41
0.21
0.43
0.21
Idle_B
0.23
0.19
0.24
0.19
Idle_C/ Standby_Y
0.23
0.12
0.24
0.12
Standby_Z
0.22
0.02
0.24
0.02
Maximum starting current
(peak DC) DC
3
σ
[5]
0.55
1.88
0.56
1.89
(peak AC) AC
3
σ
[5]
0.83
2.42
0.90
2.58
Delayed motor start (max) DC
3
σ
0.35
0.03
0.38
0.03
Peak operating current (random read):
Typical DCX
[1] [6]
0.55
0.42
0.57
0.42
Maximum DC
3
σ
[1]
0.57
0.44
0.59
0.44
Maximum (peak) DC
3
σ
1.13
1.53
1.19
1.53
Peak operating current (random write)
Typical DCX
0.61
0.34
0.62
0.34
Maximum DC
3
σ
0.63
0.35
0.64
0.35
Maximum (peak) DC
3
σ
1.31
1.57
1.31
1.57
Peak operating current (sequential read)
Typical DCX
0.96
0.23
0.98
0.23
Maximum DC
3
σ
0.98
0.24
1.01
0.24
Maximum (peak) DC
3
σ
1.15
0.45
1.23
0.45
Peak operating current (sequential write)
Typical DCX
1.05
0.23
1.06
0.23
Maximum DC
3
σ
1.07
0.24
1.08
0.24
Maximum (peak) DC
3
σ
1.32
0.42
1.34
0.42