Current And Power Dissipation - Fujitsu MPF3XXXAT Product Manual

Mode of Operation
Model
Spin up
Idle (Ready) (*3)
R/W (On Track) (*4)
Seek (Random) (*5)
Seek/W/R
Standby
Sleep
*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.
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Table 1.3

Current and power dissipation

Typical RMS current (*1) [mA]
+12 V
MPF3102AT MPF3153/
MPF3204AT
1600 1600
1800 peak 1800 peak
175 185
240 250
340 350
7 7
7 7
C141-E099-01EN
Typical Power (*2) [watts]
+5 V
All Models MPF3102AT
570 22.1
600 peak
400 4.1
500 5.4
500 6.6
185 1.0
185 1.0
MPF3153/
MPF3204AT
22.1
4.2
5.5
6.7
1.0
1.0