Table 2: | 2000GB Drive DC power requirements |
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| 1.5Gb mode |
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| 3.0Gb mode |
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Voltage |
| +5V | +12V |
| Power | +5V | +12V |
| Power |
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Regulation | ±5% | ±5% |
| (Watts) | ±5% | ±5% |
| (Watts) | |
Avg Idle Current * | 0.26 | 0.42 |
| 6.38 | 0.27 | 0.42 |
| 6.39 | |
Advanced Idle Current * |
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| Idle_A | 0.13 | 0.35 |
| 4.83 | 0.14 | 0.42 |
| 5.70 |
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| Idle_B | 0.13 | 0.36 |
| 5.01 | 0.14 | 0.36 |
| 5.00 |
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| Idle_C | 0.13 | 0.22 |
| 3.26 | 0.14 | 0.22 |
| 3.27 |
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| Standby | 0.09 | 0.01 |
| 0.51 | 0.09 | 0.01 |
| 0.53 |
Transition | Current * |
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| Idle_A (Active) | 0.86 | 1.66 |
| 24.22 | 0.98 | 0.90 |
| 15.70 |
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| Idle_B (Active) | 0.76 | 1.72 |
| 24.47 | 0.74 | 1.64 |
| 23.42 |
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| Idle_C (Active) | 0.78 | 2.48 |
| 33.71 | 0.78 | 2.50 |
| 33.95 |
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| Standby (Active) | 0.80 | 2.64 |
| 35.71 | 0.82 | 2.64 |
| 35.83 |
Average | Sleep Current | 0.09 | 0.01 |
| 0.52 | 0.09 | 0.01 |
| 0.55 |
Maximum Start Current |
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| DC (peak DC) | 0.35 | 2.03 |
| 26.13 | 0.36 | 2.03 |
| 26.24 |
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| AC (Peak DC) | 0.59 | 2.66 |
| 34.91 | 0.61 | 2.64 |
| 34.77 |
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Delayed Motor Start (DC max) | 0.09 | 0.01 |
| 0.55 | 0.09 | 0.01 |
| 0.57 | |
Peak operating current (random read): |
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| Typical DC | 0.30 | 0.63 |
| 9.02 | 0.30 | 0.63 |
| 9.03 |
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| Maximum DC | 0.30 | 0.64 |
| 9.21 | 0.31 | 0.64 |
| 9.22 |
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| Maximum DC(peak) | 1.04 | 1.88 |
| 27.78 | 1.06 | 1.88 |
| 27.86 |
Peak | operating current (random write) |
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| Typical DC | 0.30 | 0.52 |
| 7.78 | 0.31 | 0.52 |
| 7.80 |
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| Maximum DC | 0.31 | 0.53 |
| 7.90 | 0.31 | 0.53 |
| 7.95 |
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| Maximum DC(peak) | 1.40 | 1.86 |
| 29.32 | 1.44 | 1.84 |
| 29.28 |
Peak | operating current (sequential read) |
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| Typical DC | 0.65 | 0.44 |
| 8.56 | 0.65 | 0.44 |
| 8.54 |
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| Maximum DC | 0.67 | 0.45 |
| 8.78 | 0.67 | 0.44 |
| 8.67 |
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| Maximum DC(peak) | 1.12 | 0.88 |
| 16.16 | 1.08 | 0.88 |
| 15.96 |
Peak | operating current (sequential write) |
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| Typical DC | 0.64 | 0.44 |
| 8.52 | 0.65 | 0.44 |
| 8.52 |
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| Maximum DC | 0.66 | 0.45 |
| 8.66 | 0.66 | 0.44 |
| 8.65 |
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| Maximum DC(peak) | 1.44 | 0.90 |
| 18.00 | 1.44 | 0.88 |
| 17.76 |
Constellation ES Serial ATA Product Manual, Rev. D | 9 |