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FUJITSU MPE3XXXAT User Manual

Page 21

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C141-E077-01EN

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Table 1.3

Current and power dissipation

Typical RMS current (*1) [mA]

+12 V

+5 V

Model

MPE3064

AT

MPE3102/

MPE3136

AT

MPE3170/

MPE3204

AT

MPE3273

AT

All Models

MPE3064

AT

MPE3102/

MPE3136

AT

MPE3170/

MPE3204

AT

MPE3273

AT

Spin up

1500

1800 peak

1500

1800 peak

1600

1800 peak

1600

1800 peak

572

592 peak

21.1

21.1

22.3

22.3

Idle (Ready) (*3)

140

170

200

240

340

3.4

3.7

4.1

4.6

R/W (On Track) (*4)

180

210

240

280

620

5.3

5.6

6.0

6.5

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

300

330

360

400

620

6.7

7.1

7.4

7.9

Standby

7

7

7

7

185

1.0

1.0

1.0

1.0

Sleep

7

7

7

7

185

1.0

1.0

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