Product manual

24 Constellation ES.2 SAS Product Manual, Rev. G
Table 3: 2TB drive (Standard & SED model) DC power requirements
Notes
3.0Gb mode 6.0Gb mode
(Amps) (Amps) (Amps) (Amps)
Voltage +5V +12V [4] +5V +12V [4]
Regulation [5] ± 5% [2] ± 5% [2]
Avg idle current DC
X [1] [7] 0.46 0.39 0.46 0.39
Advanced idle current
Idle_A 0.28 0.42 0.28 0.42
Idle_B 0.26 0.34 0.26 0.34
Idle_C/ Standby_Y 0.26 0.20 0.26 0.20
Standby_Z 0.27 0.01 0.27 0.01
Maximum starting current
(peak DC) DC 3 [5] 0.60 1.72 0.59 1.71
(peak AC) AC 3 [5] 0.80 2.33 0.89 2.29
Delayed motor start (max) DC 3 [1] [6] 0.37 0.01 0.39 0.01
Peak operating current (random read):
Typical DCX [1] [6] 0.50 0.69 0.50 0.70
Maximum DC 3 [1] 0.51 0.71 0.52 0.72
Maximum (peak) DC 3 1.07 1.76 1.13 1.74
Peak operating current (random write)
Typical DCX 0.57 0.54 0.58 0.54
Maximum DC 3 0.58 0.56 0.59 0.56
Maximum (peak) DC 3 1.09 1.66 1.11 1.82
Peak operating current (sequential read)
Typical DCX 0.78 0.40 0.78 0.40
Maximum DC 3 0.80 0.41 0.81 0.41
Maximum (peak) DC 3 1.11 0.86 1.14 0.80
Peak operating current (sequential write)
Typical DCX 0.94 0.40 0.95 0.40
Maximum DC 3 0.97 0.41 0.98 0.41
Maximum (peak) DC 3 1.20 0.82 1.24 0.78