FUJITSU MPD3XXXAT User Manual
Page 21
C141-E069-02EN
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Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation.
Table 1.3
Current and power dissipation
Typical RMS current (*1) [mA]
+12 V
+5 V
Model
MPD3043
AT
MPD3064/
MPD3084
AT
MPD3108/
MPD3130
AT
MPD3173
AT
All Models
MPD3043
AT
MPD3064/
MPD3084
AT
MPD3108/
MPD3130
AT
MPD3173
AT
Spin up
1500
1900 peak
1500
1900 peak
1600
1900 peak
1600
1900 peak
560
600 peak
20.8
20.8
22.0
22.0
Idle (Ready) (*3)
130
177
205
230
280
3.0
3.5
3.8
4.2
R/W (On Track) (*4)
168
213
240
267
560
4.8
5.4
5.7
6.0
Seek (Random) (*5)
325
350
377
404
544
6.6
6.9
7.2
7.6
Standby
6.5
6.5
6.5
6.5
157
0.9
0.9
0.9
0.9
Sleep
6.5
6.5
6.5
6.5
152
0.8
0.8
0.8
0.8
*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.
Typical Power (*2) [watts]
Mode of Operation