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CONSTELLATION ES.3 SAS PRODUCT MANUAL, REV. B 21
Table 3 3TB drive DC power requirements
NOTES
3.0GB MODE 6.0GB MODE
(AMPS)(AMPS)(AMPS)(AMPS)
Voltage +5V +12V [2] +5V +12V [2]
Regulation [5] ± 5% [2] ± 5% [2]
Avg idle current DCX [1] [7] 0.33 0.43 0.36 0.43
Advanced idle current
Idle A
3s
0.33 0.42 0.34 0.42
Idle B
3s
0.25 0.37 0.28 0.37
Idle C
3s
0.24 0.22 0.27 0.22
Standby
3s
0.26 0.00 0.24 0.00
Maximum starting current
(peak DC) DC
3s [3]
0.62 2.20 0.65 2.19
(peak AC) AC
3s [3]
0.85 2.71 0.79 2.75
Delayed motor start (max) DC
3s [1] [4]
0.29 0.01 0.29 0.01
Peak operating current (random read):
Typical DCX [1] [6] 0.49 0.71 0.44 0.71
Maximum DC
3s
[1] 0.72 0.77 0.63 0.76
Maximum (peak) DC
3s
1.58 2.24 1.71 2.28
Peak operating current (random write)
Typical DCX
[1]
0.47 0.61 0.48 0.62
Maximum DC
3s [1]
0.72 0.64 0.74 0.65
Maximum (peak) DC
3s
0.95 2.24 1.63 2.31
Peak operating current (sequential read)
Typical DCX
[1]
0.71 0.47 0.77 0.47
Maximum DC
3s [1]
0.75 0.49 0.99 0.50
Maximum (peak) DC
3s
0.97 0.84 1.21 0.83
Peak operating current (sequential write)
Typical DCX
[1]
0.56 0.50 0.61 0.50
Maximum DC
3s [1]
0.59 0.53 0.87 0.53
Maximum (peak) DC
3s
0.74 0.89 1.00 2.19