Seagate Savvio ST9450304SS Product Manual page 31

Table 3:
450GB standard model
Voltage
Regulation
Avg idle current DC
Advanced Idle Current
Idle_A
Idle_B
Idle_C
Standby
Transition Current
Idle_A - Active
Idle_B - Active
Idle_C - Active
Standby - Active
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 operatig 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
[1] Measured with average reading DC ammeter. Instantaneous +12V current peaks will exceed these val-
ues. Power supply at nominal voltage. N (number of drives tested) = 6, 35 Degrees C ambient.
Savvio 10K.4 SAS Product Manual, Rev. C
DC power requirements
450GB standard model
3.0Gb mode
Notes (Amps)
+5V
[6] ±5%
[1] [8] 0.34
3σ 0.34
3σ 0.24
3σ 0.24
3σ 0.24
3σ 0.68
3σ 0.66
3σ 0.74
3σ 0.68
3σ [4] 0.54
3σ [4] 0.80
3σ [1] [5] 0.48
[1] [7] 0.44
3σ [1] 0.47
3σ 1.08
0.49
3σ 0.52
3σ 1.02
0.86
3σ 0.88
3σ 1.12
0.80
3σ 0.85
3σ 1.04
450GB standard model
6.0Gb mode
(Amps) (Amps)
+12V [2] +5V
±5% [2] ±5%
0.24 0.35
0.24 0.35
0.21 0.25
0.10 0.25
0.06 0.25
1.58 0.78
1.54 0.66
1.70 0.66
1.64 0.70
0.87 0.56
1.66 0.85
0.07 0.49
0.53 0.46
0.54 0.48
1.54 1.08
0.44 0.50
0.46 0.53
1.58 1.02
0.27 0.87
0.29 0.89
0.44 1.14
0.27 0.81
0.29 0.86
0.80 1.04
(Amps)
+12V [2]
±5% [2]
0.24
0.24
0.21
0.10
0.06
1.56
1.54
1.66
1.60
0.87
1.62
0.07
0.53
0.54
1.54
0.43
0.45
1.56
0.27
0.28
0.44
0.27
0.28
0.80
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