Table 13: 600 GB DC power requirements
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| ST3600057SS | ST3600057SS | ||||
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| ST3600957SS | ST3600957SS | ||||
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| 3 Gbit mode |
| 6 Gbit 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 |
| [5] |
| ±5% |
| ±5% [2] | ±5% |
| ±5% [2] |
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Avg idle current |
| [1] [7] |
| 0.37 |
| 0.81 | 0.38 |
| 0.81 |
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Maximum starting current |
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(peak DC) DC | 3σ | [3] |
| 0.67 |
| 1.90 | 0.68 |
| 1.91 |
(peak AC) AC | 3σ | [3] |
| 0.98 |
| 3.82 | 0.98 |
| 3.88 |
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Delayed motor start (max) DC | 3σ | [1] [4] |
| 0.55 |
| 0.04 | 0.56 |
| 0.04 |
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Peak operating current (random read): |
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Typical DC | [1][6] | [1] |
| 0.44 |
| 1.15 | 0.45 |
| 1.17 |
Maximum DC | 3σ | [1] |
| 0.49 |
| 1.20 | 0.51 |
| 1.21 |
Maximum DC (peak) | 3σ |
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| 1.32 |
| 3.00 | 1.34 |
| 3.00 |
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Peak operating current (random write): |
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Typical DC | [1][6] | [1] |
| 0.51 |
| 1.03 | 0.53 |
| 1.04 |
Maximum DC | 3σ | [1] |
| 0.56 |
| 1.05 | 0.58 |
| 1.07 |
Maximum DC (peak) | 3σ |
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| 1.26 |
| 2.94 | 1.28 |
| 2.92 |
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Peak operating current (sequential read): |
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Typical DC | [1][6] | [1] |
| 0.98 |
| 0.83 | 0.99 |
| 0.84 |
Maximum DC | 3σ | [1] |
| 1.08 |
| 0.84 | 1.10 |
| 0.85 |
Maximum DC (peak) | 3σ |
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| 1.40 |
| 1.26 | 1.46 |
| 1.24 |
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Peak operating current (sequential write): |
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Typical DC | [1][6] | [1] |
| 0.93 |
| 0.83 | 0.94 |
| 0.83 |
Maximum DC | 3σ | [1] |
| 1.00 |
| 0.84 | 1.02 |
| 0.85 |
Maximum DC (peak) | 3σ |
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| 1.30 |
| 1.24 | 1.30 |
| 1.26 |
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20 | Cheetah 15K.7 SAS Product Manual, Rev. A |
