Seagate ST800FM0012 Pulsar Serial ATA Product Manual - Page 16

Peak Operating Current random read

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Table 3: 100GB DC power requirements Parameter 100Gb (3.0GB) Regulation +/‐5% Voltage +5 V Current (A) Power (W) Average Idle Current DCx 0.14 0.70 Standby DCx 0.11 0.55 Average Sleep Current DCx 0.10 0.50 Maximum Start Current: DC (Peak DC) AC (Peak AC) 3σ 0.80 3σ 1.48 Delayed Motor Start (DC max) 3σ 0.11 0.55 Peak Operating Current (random read): Typical DC DCx 0.16 0.80 Maximum DC Maximum DC (peak) 3σ 0.17 0.85 3σ 0.67 Peak Operating Current (random write): Typical DC Maximum DC Maximum DC (peak) DCx 0.26 1.30 3σ 0.27 1.35 3σ 0.97 Peak operating current (sequential read): Typical DC DCx 0.23 1.15 Maximum DC 3σ 0.24 1.20 Maximum DC (peak) 3σ 0.77 Peak operating current (sequential write): Typical DC DCx 0.38 1.90 Maximum DC 3σ 0.40 2.00 Maximum DC (peak) 3σ 1.04 *During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase power to operational levels. 10 Pulsar Product Manual, Rev. A

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10
Pulsar Product Manual, Rev. A
Table 3:
100GB DC power requirements
Parameter
Regulation
+/
5%
Voltage
+5 V
Current (A)
Power (W)
Average Idle Current
DCx
0.14
0.70
Standby
DCx
0.11
0.55
Average Sleep Current
DCx
0.10
0.50
Maximum Start Current:
DC (Peak DC)
3
σ
0.80
AC (Peak AC)
3
σ
1.48
Delayed Motor Start (DC max)
3
σ
0.11
0.55
Peak Operating Current (random read):
Typical DC
DCx
0.16
0.80
Maximum DC
3
σ
0.17
0.85
Maximum DC (peak)
3
σ
0.67
Peak Operating Current (random write):
Typical DC
DCx
0.26
1.30
Maximum DC
3
σ
0.27
1.35
Maximum DC (peak)
3
σ
0.97
Peak operating current (sequential read):
Typical DC
DCx
0.23
1.15
Maximum DC
3
σ
0.24
1.20
Maximum DC (peak)
3
σ
0.77
Peak operating current (sequential write):
Typical DC
DCx
0.38
1.90
Maximum DC
3
σ
0.40
2.00
Maximum DC (peak)
3
σ
1.04
100Gb (3.0GB)
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase power to oper-
ational levels
.