Table 1.3 Current and power dissipation
Mode of |
| Typical RMS current (*1) [mA] |
| Typical Power (*2) [watts] | ||||
Operation |
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| +12 V |
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| +5 V |
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Model | MPB | MPB | MPB |
| All Models | MPB | MPB | MPB |
| 3021AT | 3032AT | 3052AT |
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| 3021AT | 3032AT | 3052AT |
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| MPB | MPB |
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| MPB | MPB |
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| 3043AT | 3064AT |
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| 3043AT | 3064AT |
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Spin up |
| 1300 |
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| 460 |
| 17.9 |
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| 1500 peak |
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| 600 peak |
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Idle (Ready) | 115 | 140 | 185 |
| 460 | 3.68 | 3.98 | 4.52 |
(*3) |
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R/W (On Track) | 125 | 150 | 200 |
| 510 | 4.05 | 4.35 | 4.95 |
(*4) |
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Seek (Random) | 335 | 360 | 410 |
| 510 | 6.57 | 6.87 | 7.47 |
(*5) |
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Standby |
| 4 |
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| 155 |
| 0.82 |
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Sleep |
| 4 |
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| 110 |
| 0.60 |
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*1 Current is typical rms except for spin up.
*2 Power requirements reflect nominal values for +12V and +5V power.
*3 Idle mode is in effect when the drive is not reading, writing, seeking, or executing any commands. A portion of the R/W circuitry is powered down, the spindle motor is up to speed and the Drive ready condition exists.
*4 R/W mode is defined as 50% read operations and 50% write operations on a single physical track.
*5 Seek mode is defined as continuous random seek operations with minimum controller delay.
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