Table 1.3 Current and power dissipation

Mode of Operation

Typical RMS current (*1) [mA]

Typical Power (*2) [watts]

 

 

 

+12 V

+5 V

 

 

 

 

 

 

 

 

 

Model

MPF3102AT

MPF3153/

All Models

MPF3102AT

MPF3153/

 

 

MPF3204AT

 

 

MPF3204AT

 

 

 

 

 

 

Spin up

1600

1600

570

22.1

22.1

 

1800 peak

1800 peak

600 peak

 

 

 

 

 

 

 

 

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)

340

350

500

6.6

6.7

Seek/W/R

 

 

 

 

 

 

 

 

 

 

 

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 nominalvalues 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.

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Fujitsu MPF3XXXAT manual Current and power dissipation