Medalist 17242, 13032, 10232, 8422 and 4312, Rev. A | 9 |
Operating power and current are measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads), and 20 percent drive inactive.
Idle mode power is measured with the drive up to speed, with servo electronics active, and with the heads in a random track location.
During Standby mode, the drive accepts commands, but the drive is not spinning, and servo and read/write electronics are in
Mode | Typical Watts RMS | Typical Amps RMS | |
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| 5V | 12V |
Spinup | — | 0.6 (Peak) | 2.2 (Peak) |
Seek | 8.5 | 0.5 | 0.5 |
(Random, |
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no read/write) |
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Read/Write | 5.5 | 0.5 | 0.25 |
Operating | 7.3 | 0.5 | 0.4 |
Idle | 5.5 | 0.5 | 0.25 |
Standby | 1.08 | 0.2 | 0.007 |
Sleep | 1.08 | 0.2 | 0.007 |
1.7.1.1 Typical current profile
Figure 1 shows a typical current profile.
Current (Amps) |
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2.0 |
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1.5 |
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1.0 |
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0.5 |
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0 |
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0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Time (seconds)