Seagate ST3300457FC Cheetah 15K.7 SAS Product Manual - Page 27

Table 13, DC power requirements

Page 27 highlights

Table 13: 600 GB DC power requirements Voltage Regulation 3 Gbit mode Notes (Amps) (Amps) +5V +12V [2] [5] ±5% ±5% [2] Avg idle current Maximum starting current (peak DC) DC (peak AC) AC Delayed motor start (max) DC Peak operating current (random read): Typical DC Maximum DC Maximum DC (peak) Peak operating current (random write): Typical DC Maximum DC Maximum DC (peak) Peak operating current (sequential read): [1] [7] 0.37 0.81 3σ [3] 0.67 1.90 3σ [3] 0.98 3.82 3σ [1] [4] 0.55 0.04 [1][6] [1] 0.44 1.15 3σ [1] 0.49 1.20 3σ 1.32 3.00 [1][6] [1] 0.51 1.03 3σ [1] 0.56 1.05 3σ 1.26 2.94 Typical DC Maximum DC Maximum DC (peak) Peak operating current (sequential write): [1][6] [1] 0.98 0.83 3σ [1] 1.08 0.84 3σ 1.40 1.26 Typical DC Maximum DC Maximum DC (peak) [1][6] [1] 0.93 0.83 3σ [1] 1.00 0.84 3σ 1.30 1.24 6 Gbit mode (Amps) (Amps) +5V +12V [2] ±5% ±5% [2] 0.38 0.81 0.68 1.91 0.98 3.88 0.56 0.04 0.45 1.17 0.51 1.21 1.34 3.00 0.53 1.04 0.58 1.07 1.28 2.92 0.99 0.84 1.10 0.85 1.46 1.24 0.94 0.83 1.02 0.85 1.30 1.26 Cheetah 15K.7 SAS Product Manual, Rev. C 21

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Cheetah 15K.7 SAS Product Manual, Rev. C
21
Table 13:
600 GB
DC power requirements
Notes
3 Gbit mode
6 Gbit mode
(Amps)
(Amps)
(Amps)
(Amps)
Voltage
+5V
+12V [2]
+5V
+12V [2]
Regulation
[5]
±5%
±5% [2]
±5%
±5% [2]
Avg idle current
[1] [7]
0.37
0.81
0.38
0.81
Maximum starting current
(peak DC) DC
3
σ
[3]
0.67
1.90
0.68
1.91
(peak AC) AC
3
σ
[3]
0.98
3.82
0.98
3.88
Delayed motor start (max) DC
3
σ
[1] [4]
0.55
0.04
0.56
0.04
Peak operating current (random read):
Typical DC
[1][6]
[1]
0.44
1.15
0.45
1.17
Maximum DC
3
σ
[1]
0.49
1.20
0.51
1.21
Maximum DC (peak)
3
σ
1.32
3.00
1.34
3.00
Peak operating current (random write):
Typical DC
[1][6]
[1]
0.51
1.03
0.53
1.04
Maximum DC
3
σ
[1]
0.56
1.05
0.58
1.07
Maximum DC (peak)
3
σ
1.26
2.94
1.28
2.92
Peak operating current (sequential read):
Typical DC
[1][6]
[1]
0.98
0.83
0.99
0.84
Maximum DC
3
σ
[1]
1.08
0.84
1.10
0.85
Maximum DC (peak)
3
σ
1.40
1.26
1.46
1.24
Peak operating current (sequential write):
Typical DC
[1][6]
[1]
0.93
0.83
0.94
0.83
Maximum DC
3
σ
[1]
1.00
0.84
1.02
0.85
Maximum DC (peak)
3
σ
1.30
1.24
1.30
1.26