(3)Current Requirements and Power Dissipation Table 1.3 lists the current and power dissipation.
Table 1.3 Current and power dissipation
Mode of Operation |
| Typical RMS current (*1) [mA] |
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| Typical Power (*2) [watts] |
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| +12 V |
| +5 V |
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Model | MPD3043 | MPD3064/ | MPD3108/ | MPD3173 | All Models | MPD3043 | MPD3064/ | MPD3108/ | MPD3173 |
| AT | MPD3084 | MPD3130 | AT |
| AT | MPD3084 | MPD3130 | AT |
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| AT | AT |
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| AT | AT |
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Spin up | 1500 | 1500 | 1600 | 1600 | 560 | 20.8 | 20.8 | 22.0 | 22.0 |
| 1900 peak | 1900 peak | 1900 peak | 1900 peak | 600 peak |
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Idle (Ready) (*3) | 130 | 177 | 205 | 230 | 280 | 3.0 | 3.5 | 3.8 | 4.2 |
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R/W (On Track) (*4) | 168 | 213 | 240 | 267 | 560 | 4.8 | 5.4 | 5.7 | 6.0 |
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Seek (Random) (*5) | 325 | 350 | 377 | 404 | 544 | 6.6 | 6.9 | 7.2 | 7.6 |
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Standby | 6.5 | 6.5 | 6.5 | 6.5 | 157 | 0.9 | 0.9 | 0.9 | 0.9 |
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Sleep | 6.5 | 6.5 | 6.5 | 6.5 | 152 | 0.8 | 0.8 | 0.8 | 0.8 |
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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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