Seagate ST300MP0014 Savvio 15K.2 SAS Product Manual - Page 30

Table 2, DC power requirements

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Table 2: 146GB models DC power requirements Voltage Regulation Avg idle current DC 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 Notes [5] [1] [7] 3σ [3] 3σ [3] 3σ [1] [4] [1] [6] 3σ [1] 3σ [1] 3σ [1] 3σ [1] 3σ [1] 3σ [1] 3σ [1] 3σ 3.0 Gbit mode (Amps) (Amps) +5V +12V [2] ±5% ±5% [2] 0.36 0.21 0.51 1.12 0.93 1.77 0.56 0.05 0.45 0.41 0.47 0.41 1.14 1.24 0.51 0.32 0.54 0.33 1.16 1.22 0.88 0.22 0.90 0.22 1.20 0.48 0.86 0.22 0.92 0.22 1.18 0.46 6.0 Gbit mode (Amps) (Amps) +5V +12V [2] ±5% ±5% [2] 0.37 0.21 0.51 1.12 0.90 1.79 0.57 0.06 0.46 0.41 0.48 0.41 1.16 1.22 0.53 0.32 0.55 0.32 1.16 1.20 0.90 0.22 0.92 0.22 1.22 0.46 0.87 0.22 0.93 0.22 1.18 0.46 22 Savvio 15K.2 SAS Product Manual, Rev. G

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22
Savvio 15K.2 SAS Product Manual, Rev. G
Table 2:
146GB models
DC power requirements
Notes
3.0 Gbit mode
6.0 Gbit mode
(Amps)
(Amps)
(Amps)
(Amps)
Voltage
+5V
+12V [2]
+5V
+12V [2]
Regulation
[5]
±5%
±5% [2]
±5%
±5% [2]
Avg idle current DC
[1] [7]
0.36
0.21
0.37
0.21
Maximum starting current
(peak DC) DC
3
σ
[3]
0.51
1.12
0.51
1.12
(peak AC) AC
3
σ
[3]
0.93
1.77
0.90
1.79
Delayed motor start (max) DC
3
σ
[1] [4]
0.56
0.05
0.57
0.06
Peak operating current: (random read)
Typical DC
[1] [6]
0.45
0.41
0.46
0.41
Maximum DC
3
σ
[1]
0.47
0.41
0.48
0.41
Maximum (peak) DC
3
σ
1.14
1.24
1.16
1.22
Peak operating current: (random write)
Typical DC
[1]
0.51
0.32
0.53
0.32
Maximum DC
3
σ
[1]
0.54
0.33
0.55
0.32
Maximum (peak) DC
3
σ
1.16
1.22
1.16
1.20
Peak operating current: (sequential read)
Typical DC
[1]
0.88
0.22
0.90
0.22
Maximum DC
3
σ
[1]
0.90
0.22
0.92
0.22
Maximum (peak) DC
3
σ
1.20
0.48
1.22
0.46
Peak operating current: (sequential write)
Typical DC
[1]
0.86
0.22
0.87
0.22
Maximum DC
3
σ
[1]
0.92
0.22
0.93
0.22
Maximum (peak) DC
3
σ
1.18
0.46
1.18
0.46