Fujitsu MPB3043AT Product Manual - Page 21

Table 1.3, Current and power dissipation

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Mode of Operation Model Spin up Idle (Ready) (*3) R/W (On Track) (*4) Seek (Random) (*5) Standby Sleep Table 1.3 Current and power dissipation Typical RMS current (*1) [mA] +12 V +5 V MPB 3021AT MPB 3032AT MPB 3043AT MPB 3052AT MPB 3064AT All Models 1300 1500 peak 460 600 peak 115 140 185 460 Typical Power (*2) [watts] MPB 3021AT 3.68 MPB 3032AT MPB 3043AT 17.9 3.98 MPB 3052AT MPB 3064AT 4.52 125 150 200 510 4.05 4.35 4.95 335 360 410 510 6.57 6.87 7.47 4 155 0.82 4 110 0.60 *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. 1 - 6 C141-E045-02EN

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C141-E045-02EN
1 - 6
Table 1.3
Current and power dissipation
Typical RMS current (*1) [mA]
+12 V
+5 V
Model
MPB
3021AT
MPB
3032AT
MPB
3043AT
MPB
3052AT
MPB
3064AT
All Models
MPB
3021AT
MPB
3032AT
MPB
3043AT
MPB
3052AT
MPB
3064AT
Spin up
1300
1500
peak
460
600
peak
17.9
Idle (Ready)
(*3)
115
140
185
460
3.68
3.98
4.52
R/W (On Track)
(*4)
125
150
200
510
4.05
4.35
4.95
Seek (Random)
(*5)
335
360
410
510
6.57
6.87
7.47
Standby
4
155
0.82
Sleep
4
110
0.60
*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