Table 3: | 450GB standard model DC power requirements |
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| 450GB standard model | 450GB standard model | ||
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| 3.0Gb mode |
| 6.0Gb mode |
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| Notes | (Amps) | (Amps) | (Amps) | (Amps) |
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Voltage |
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| +5V | +12V [2] | +5V | +12V [2] |
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Regulation |
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| [5] | ±5% | ±5% [2] | ±5% | ±5% [2] |
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Avg idle current DC |
| [1] [7] | 0.34 | 0.24 | 0.35 | 0.24 | |
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Advanced Idle Current |
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Idle_A |
| 3σ |
| 0.34 | 0.24 | 0.35 | 0.24 |
Idle_B |
| 3σ |
| 0.24 | 0.21 | 0.25 | 0.21 |
Idle_C |
| 3σ |
| 0.24 | 0.10 | 0.25 | 0.10 |
Standby | 3σ |
| 0.24 | 0.06 | 0.25 | 0.06 | |
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Transition Current |
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Idle_A - Active | 3σ |
| 0.68 | 1.58 | 0.78 | 1.56 | |
Idle_B - Active | 3σ |
| 0.66 | 1.54 | 0.66 | 1.54 | |
Idle_C - Active | 3σ |
| 0.74 | 1.70 | 0.66 | 1.66 | |
Standby - Active | 3σ |
| 0.68 | 1.64 | 0.70 | 1.60 | |
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Maximum starting current |
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(peak DC) DC | 3σ | [3] | 0.54 | 0.87 | 0.56 | 0.87 | |
(peak AC) AC | 3σ | [3] | 0.80 | 1.66 | 0.85 | 1.62 | |
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Delayed motor start (max) DC | 3σ | [1] [4] | 0.48 | 0.07 | 0.49 | 0.07 | |
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Peak operating current (random read): |
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Typical DC |
| [1] [6] | 0.44 | 0.53 | 0.46 | 0.53 | |
Maximum DC | 3σ | [1] | 0.47 | 0.54 | 0.48 | 0.54 | |
Maximum (peak) DC | 3σ |
| 1.08 | 1.54 | 1.08 | 1.54 | |
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Peak operatig current (random write) |
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Typical DC |
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| 0.49 | 0.44 | 0.50 | 0.43 | |
Maximum DC | 3σ |
| 0.52 | 0.46 | 0.53 | 0.45 | |
Maximum (peak) DC | 3σ |
| 1.02 | 1.58 | 1.02 | 1.56 | |
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Peak operating current (sequential read) |
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Typical DC |
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| 0.86 | 0.27 | 0.87 | 0.27 | |
Maximum DC | 3σ |
| 0.88 | 0.29 | 0.89 | 0.28 | |
Maximum (peak) DC | 3σ |
| 1.12 | 0.44 | 1.14 | 0.44 | |
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Peak operating current (sequential write) |
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Typical DC |
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| 0.80 | 0.27 | 0.81 | 0.27 | |
Maximum DC | 3σ |
| 0.85 | 0.29 | 0.86 | 0.28 | |
Maximum (peak) DC | 3σ |
| 1.04 | 0.80 | 1.04 | 0.80 | |
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[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. A | 23 |