Constellation ES.1 SAS Product Manual, Rev. E
25
Note.
See table notes on the next page.
Table 4:
500GB drive (Standard & SED model)
DC power requirements
Notes
3.0Gb mode
6.0Gb mode
(Amps)
(Amps)
Voltage
+5V
+12V [4]
+5V
+12V [4]
Regulation
[5]
±5%
±5% [2]
±5%
±5% [2]
Avg idle current DCX
[1] [7]
0.36
0.21
0.36
0.21
Advanced idle current
Idle_A
0.36
0.21
0.36
0.21
Idle_B
0.25
0.19
0.25
0.19
Idle_C/ Standby_Y
0.25
0.11
0.25
0.12
Standby_Z
0.25
0.02
0.26
0.02
Transition current
Idle_A - Active
0.62
1.48
0.64
1.42
Idle_B - Active
0.62
1.32
0.70
1.35
Idle_C - Active
0.66
2.04
0.84
2.05
Standby - Active
0.88
2.46
0.86
2.53
Maximum starting current
(peak DC) DC
3
σ
[5]
0.61
1.92
0.61
1.93
(peak AC) AC
3
σ
[5]
0.83
2.53
0.96
2.59
Delayed motor start (max) DC
3
σ
[1] [6]
0.44
0.02
0.44
0.02
Peak operating current (random read):
Typical DCX
[1] [6]
0.44
0.37
0.44
0.38
Maximum DC
3
σ
[1]
0.44
0.39
0.50
0.41
Maximum (peak) DC
3
σ
1.18
1.48
1.29
1.45
Peak operating current (random write)
Typical DCX
0.54
0.28
0.54
0.29
Maximum DC
3
σ
0.59
0.31
0.59
0.41
Maximum (peak) DC
3
σ
1.32
1.47
1.32
1.47
Peak operating current (sequential read)
Typical DCX
0.77
0.20
0.77
0.20
Maximum DC
3
σ
0.84
0.21
0.84
0.21
Maximum (peak) DC
3
σ
1.07
0.40
1.07
0.43
Peak operating current (sequential write)
Typical DCX
0.95
0.20
0.95
0.20
Maximum DC
3
σ
1.01
0.21
1.01
0.21
Maximum (peak) DC
3
σ
1.40
0.38
1.38
0.38
