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Table 4: | 500GB drive (Standard & SED model) DC power requirements |
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| 3.0Gb mode | 6.0Gb mode | ||||
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| Notes |
| (Amps) |
| (Amps) | ||
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Voltage |
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| +5V |
| +12V [4] | +5V |
| +12V [4] |
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Regulation |
| [5] | ±5% |
| ±5% [2] | ±5% |
| ±5% [2] | |||||
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| [1] [7] | 0.36 |
| 0.21 | 0.36 |
| 0.21 |
Avg idle current DCX |
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Advanced idle current |
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| Idle_A |
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| 0.36 |
| 0.21 | 0.36 |
| 0.21 | ||||
| Idle_B |
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| 0.25 |
| 0.19 | 0.25 |
| 0.19 | ||||
| Idle_C/ Standby_Y |
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| 0.25 |
| 0.11 | 0.25 |
| 0.12 | ||||
| Standby_Z |
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| 0.25 |
| 0.02 | 0.26 |
| 0.02 | ||||
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Transition current |
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| Idle_A - Active |
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| 0.62 |
| 1.48 | 0.64 |
| 1.42 | ||||
| Idle_B - Active |
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| 0.62 |
| 1.32 | 0.70 |
| 1.35 | ||||
| Idle_C - Active |
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| 0.66 |
| 2.04 | 0.84 |
| 2.05 | ||||
| Standby - Active |
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| 0.88 |
| 2.46 | 0.86 |
| 2.53 | ||||
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Maximum starting current |
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| (peak DC) DC | 3σ | [5] | 0.61 |
| 1.92 | 0.61 |
| 1.93 | ||||
| (peak AC) AC | 3σ | [5] | 0.83 |
| 2.53 | 0.96 |
| 2.59 | ||||
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Delayed motor start (max) DC | 3σ | [1] [6] | 0.44 |
| 0.02 | 0.44 |
| 0.02 | |||||
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Peak operating current (random read): |
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| [1] [6] | 0.44 |
| 0.37 | 0.44 |
| 0.38 | ||
| Typical DCX |
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| Maximum DC | 3σ | [1] | 0.44 |
| 0.39 | 0.50 |
| 0.41 | ||||
| Maximum (peak) DC | 3σ |
| 1.18 |
| 1.48 | 1.29 |
| 1.45 | ||||
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Peak operating current (random write) |
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| 0.54 |
| 0.28 | 0.54 |
| 0.29 | ||
| Typical DCX |
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| Maximum DC | 3σ |
| 0.59 |
| 0.31 | 0.59 |
| 0.41 | ||||
| Maximum (peak) DC | 3σ |
| 1.32 |
| 1.47 | 1.32 |
| 1.47 | ||||
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Peak operating current (sequential read) |
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| 0.77 |
| 0.20 | 0.77 |
| 0.20 | ||
| Typical DCX |
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| Maximum DC | 3σ |
| 0.84 |
| 0.21 | 0.84 |
| 0.21 | ||||
| Maximum (peak) DC | 3σ |
| 1.07 |
| 0.40 | 1.07 |
| 0.43 | ||||
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Peak operating current (sequential write) |
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| 0.95 |
| 0.20 | 0.95 |
| 0.20 | ||
| Typical DCX |
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| Maximum DC | 3σ |
| 1.01 |
| 0.21 | 1.01 |
| 0.21 | ||||
| Maximum (peak) DC | 3σ |
| 1.40 |
| 0.38 | 1.38 |
| 0.38 | ||||
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Note. See table notes on the next page.
Constellation ES.1 SAS Product Manual, Rev. E | 25 |
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