Seagate ST33000651SS Constellation ES (.1) SATA Product Manual - Page 16

Table 2, DC power requirements

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Table 2: 2TB Drive DC power requirements Voltage Regulation Avg Idle Current * Advanced Idle Current * Idle_A Idle_B Idle_C Standby Transition Current * Idle_A (Active) Idle_B (Active) Idle_C (Active) Standby (Active) Average Sleep Current Maximum Start Current DC (peak DC) 3σ AC (Peak DC) 3σ Delayed Motor Start (DC max) 3σ Peak operating current (random read): Typical DC Maximum DC 3σ Maximum DC(peak) 3σ Peak operating current (random write) Typical DC Maximum DC 3σ Maximum DC(peak) 3σ Peak operating current (sequential read) Typical DC Maximum DC 3σ Maximum DC(peak) 3σ Peak operating current (sequential write) Typical DC Maximum DC 3σ Maximum DC(peak) 3σ 3.0Gb mode +5V +12V ±5% ±5% 0.24 0.41 0.24 0.41 0.14 0.36 0.14 0.20 0.13 0.02 0.54 1.76 0.60 1.61 0.62 2.39 0.68 2.72 0.13 0.02 0.53 2.10 0.69 2.78 0.14 0.02 0.29 0.61 0.30 0.63 1.09 1.65 0.39 0.53 0.40 0.54 1.16 1.66 0.62 0.42 0.64 0.44 0.94 0.64 0.78 0.42 0.83 0.44 1.18 0.67 6.0Gb mode +5V +12V ±5% ±5% 0.24 0.42 0.24 0.42 0.15 0.37 0.15 0.20 0.14 0.02 0.54 1.72 0.62 1.57 0.64 2.37 0.66 2.73 0.14 0.02 0.53 2.10 0.90 2.77 0.14 0.02 0.30 0.31 1.10 0.39 0.40 1.127 0.62 0.64 0.96 0.78 0.82 1.24 0.62 0.65 1.64 0.53 0.54 1.65 0.43 0.44 0.66 0.43 0.44 0.642 10 Constellation ES Serial ATA Product Manual, Rev. D

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10
Constellation ES Serial ATA Product Manual, Rev. D
Table 2:
2TB Drive
DC power requirements
3.0Gb mode
6.0Gb mode
Voltage
+5V
+12V
+5V
+12V
Regulation
±5%
±5%
±5%
±5%
Avg Idle Current *
0.24
0.41
0.24
0.42
Advanced Idle Current *
Idle_A
0.24
0.41
0.24
0.42
Idle_B
0.14
0.36
0.15
0.37
Idle_C
0.14
0.20
0.15
0.20
Standby
0.13
0.02
0.14
0.02
Transition Current *
Idle_A (Active)
0.54
1.76
0.54
1.72
Idle_B (Active)
0.60
1.61
0.62
1.57
Idle_C (Active)
0.62
2.39
0.64
2.37
Standby (Active)
0.68
2.72
0.66
2.73
Average Sleep Current
0.13
0.02
0.14
0.02
Maximum Start Current
DC (peak DC)
3
σ
0.53
2.10
0.53
2.10
AC (Peak DC)
3
σ
0.69
2.78
0.90
2.77
Delayed Motor Start (DC max)
3
σ
0.14
0.02
0.14
0.02
Peak operating current (random read):
Typical DC
0.29
0.61
0.30
0.62
Maximum DC
3
σ
0.30
0.63
0.31
0.65
Maximum DC(peak)
3
σ
1.09
1.65
1.10
1.64
Peak operating current (random write)
Typical DC
0.39
0.53
0.39
0.53
Maximum DC
3
σ
0.40
0.54
0.40
0.54
Maximum DC(peak)
3
σ
1.16
1.66
1.127
1.65
Peak operating current (sequential read)
Typical DC
0.62
0.42
0.62
0.43
Maximum DC
3
σ
0.64
0.44
0.64
0.44
Maximum DC(peak)
3
σ
0.94
0.64
0.96
0.66
Peak operating current (sequential write)
Typical DC
0.78
0.42
0.78
0.43
Maximum DC
3
σ
0.83
0.44
0.82
0.44
Maximum DC(peak)
3
σ
1.18
0.67
1.24
0.642