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6.3
DC
POWER REQUIREMENTS
The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector.
The standard drive models and the SED drive models have identical hardware, however the security and encryption portion
of the drive controller ASIC is enabled and functional in the SED models. This represents a small additional drain on the 5V
supply of about 30mA and a commensurate increase of about 150mW in power consumption. There is no additional drain on
the 12V supply.
Table 2 900GB standard drive DC power requirements
Voltage
Regulation
Avg idle current DC
Advanced Idle Current
Idle_A
Idle_B
Idle_C
Standby
Maximum starting current
(peak DC) DC
(peak AC) AC
Delayed motor start (max) DC
Peak operating current (random read):
Typical DC
Maximum DC
Maximum (peak) DC
Peak operating current (random write)
Typical DC
Maximum DC
Maximum (peak) DC
Peak operating current (sequential read)
Typical DC
Maximum DC
Maximum (peak) DC
Peak operating current (sequential write)
Typical DC
Maximum DC
Maximum (peak) DC
S
10K.5 SAS P
AVVIO
RODUCT
N
OTES
[6]
[1] [8]
3σ
3σ
3σ
3σ
3σ
[3]
3σ
[3]
3σ
[1] [5]
[1] [7]
3σ
[1]
3σ
[1]
3σ
[1]
3σ
[1]
3σ
[1]
3σ
[1]
3σ
[1]
3σ
M
, R
. J
ANUAL
EV
3.0G
B MODE
(A
)
(A
)
MPS
MPS
+5V
+12V [2]
±5%
±5% [2]
0.35
0.22
0.40
0.24
0.27
0.20
0.27
0.11
0.26
0.06
0.62
1.00
1.06
1.67
0.45
0.09
0.45
0.48
0.52
0.51
1.33
1.54
0.53
0.45
0.60
0.48
1.19
1.60
0.82
0.24
0.91
0.25
1.18
0.49
0.89
0.24
0.97
0.25
1.25
0.40
6.0G
B MODE
(A
)
(A
)
MPS
MPS
+5V
+12V [2]
±5%
±5% [2]
0.35
0.22
0.40
0.24
0.27
0.21
0.27
0.11
0.27
0.06
0.63
1.00
0.98
1.67
0.46
0.07
0.46
0.48
0.51
0.48
1.33
1.53
0.53
0.45
0.60
0.48
1.13
1.54
0.82
0.24
0.91
0.25
1.25
0.46
0.89
0.24
0.96
0.25
1.17
0.42
21
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