C
ONSTELLATION
ES.1 SAS P
RODUCT
M
ANUAL
, R
EV
. G
20
Table 3
1TB 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]
0.35
0.28
0.36
0.28
Advanced idle current
Idle_A
0.35
0.28
0.36
0.28
Idle_B
0.24
0.25
0.24
0.25
Idle_C/ Standby_Y
0.24
0.14
0.24
0.14
Standby_Z
0.25
0.02
0.25
0.02
Transition current
Idle_A - Active
0.60
1.52
0.60
1.50
Idle_B - Active
0.64
1.43
0.60
1.40
Idle_C - Active
0.60
2.04
0.60
2.11
Standby - Active
0.90
2.50
0.88
2.49
Maximum starting current
(peak DC) DC
3s
[5]
0.57
1.93
0.58
1.93
(peak AC) AC
3s
[5]
0.92
2.62
1.08
2.55
Delayed motor start (max) DC
3s
[1] [6]
0.39
0.02
0.39
0.02
Peak operating current (random read):
Typical DCX
[1] [6]
0.43
0.45
0.44
0.47
Maximum DC
3s
[1]
0.44
0.48
0.45
0.50
Maximum (peak) DC
3s
1.17
1.56
1.14
1.55
Peak operating current (random write)
Typical DCX
0.53
0.35
0.53
0.36
Maximum DC
3s
0.55
0.38
0.55
0.38
Maximum (peak) DC
3s
1.30
1.59
1.32
1.54
Peak operating current (sequential read)
Typical DCX
0.77
0.27
0.77
0.27
Maximum DC
3s
0.80
0.28
0.81
0.29
Maximum (peak) DC
3s
1.06
0.64
1.09
0.51
Peak operating current (sequential write)
Typical DCX
0.94
0.27
0.94
0.27
Maximum DC
3s
1.02
0.28
1.03
0.29
Maximum (peak) DC
3s
1.37
0.54
1.36
0.48
