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FUJITSU MPF3XXXAT User Manual

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C141-E099-01EN

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Table 1.3

Current and power dissipation

Typical RMS current (*1) [mA]

+12 V

+5 V

Model

MPF3102AT

MPF3153/

MPF3204AT

All Models

MPF3102AT

MPF3153/

MPF3204AT

Spin up

1600

1800 peak

1600

1800 peak

570

600 peak

22.1

22.1

Idle (Ready) (*3)

175

185

400

4.1

4.2

R/W (On Track) (*4)

240

250

500

5.4

5.5

Seek (Random) (*5)
Seek/W/R

340

350

500

6.6

6.7

Standby

7

7

185

1.0

1.0

Sleep

7

7

185

1.0

1.0

*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/W/R mode is defined as 33% seek operations, 33% write operations and 33% read operations.

Typical Power (*2) [watts]

Mode of Operation