Table 4: | DC power requirements |
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Power dissipation (typical) | Average (watts, 25° C) | 5V typ amps | 12V typ amps | |
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Spinup |
| — | — | 2.8 (peak) |
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Idle |
| 7.2 | 0.401 | 0.433 |
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Idle* (with offline activity) | 9.1 | 0.78 | 0.433 | |
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Operating | (40% r/w, 40% seek, 20% inop.) | 12.8 | 0.841 | 0.715 |
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Seeking (random, 20% idle) | 12.4 | 0.602 | 0.782 | |
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Standby |
| 1.4 | 0.265 | 0.006 |
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Sleep |
| 1.4 | 0.265 | 0.006 |
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*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.
2.8.1.1Typical current profiles
Figure 1. Typical 5V startup and operation current profile
Figure 2. Typical 12V startup and operation current profile
14 | Barracuda 7200.8 Serial ATA Product Manual, Rev. F |
