Current And Power Dissipation - Fujitsu C141-E090-02EN Product Manual

(3) Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation.
Mode of Operation
Model MPE
3102AH
Spin up 1600
1800 peak
Idle (Ready) 340
(*3)
R/W (On Track) 340
(*4)
Seek (Random) 640
(*5)
Standby 7.0
Sleep 7.0
*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 mode is defined as continuous random seek operations with minimum controller delay.
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Table 1.3

Current and power dissipation

Typical RMS current (*1) [mA]
+12 V
MPE MPE MPE
3136AH 3204AH 3273AH
1600 1600 1600
1800 peak 1800 peak 1800 peak
340 400 460
340 400 460
640 670 700
7.0 7.0 7.0
7.0 7.0 7.0
C141-E090-01EN
Typical Power (*2) [watts]
+5 V
All MPE MPE
Models 3102AH 3136AH
540 21.9 21.9
640 peak
420 6.2 6.2
450 6.3 6.3
420 9.8 9.8
185 1.0 1.0
185 1.0 1.0
MPE MPE
3204AH 3273AH
21.9 21.9
6.9 7.6
7.1 7.8
10.1 10.5
1.0 1.0
1.0 1.0