Current And Power Dissipation - Fujitsu MPD3XXXAT Product Manual

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