Table 1.3 Current and power dissipation

 

Mode of Operation

 

Typical RMS current (*1) [mA]

Typical Power (*2) [watts]

 

 

 

 

 

 

 

 

 

+12 V

+5 V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

 

MPG3102AT

MPG3307AT

 

 

MPG3102AT

MPG3307AT

 

 

 

 

MPG3153AT

All Models

MPG3153AT

 

 

 

 

MPG3409AT

MPG3409AT

 

 

 

 

MPG3204AT

 

 

MPG3204AT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Spin up

 

1600

1600

570

 

22.1

22.1

 

 

 

 

1800 peak

1800 peak

600 peak

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Idle (Ready) (*3)

 

230

270

460

 

5.1

5.5

 

 

 

 

 

 

 

 

 

 

 

 

R/W (On Track) (*4)

 

300

330

460

 

5.9

6.3

 

 

 

 

 

 

 

 

 

 

 

 

Seek (Random) (*5)

 

430

450

460

 

7.5

7.7

 

 

Seek/W/R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standby

 

18

18

120

 

0.8

0.8

 

 

 

 

 

 

 

 

 

 

 

 

Sleep

 

18

18

120

 

0.8

0.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

 

MPG3153AT

MPG3102AT

 

MPG3307AT

MPG3409AT

 

 

 

 

 

 

MPG3204AT

 

 

 

 

 

Energy efficiency (rank)(*6)[watt/GB]

0.332 (A)

0.249 (A)

 

0.179 (B)

0.134 (B)

 

 

 

 

 

 

 

 

 

 

 

*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.

*6 Energy efficiency based on the Law concerning the Rational Use of Energy indicates the value obtained by dividing power consumption by the storage capacity. (Japan only)

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Fujitsu MPG3XXXAT manual Current and power dissipation, MPG3307AT