Current And Power Dissipation - Fujitsu MPE3XXXAE Product Manual

(3) Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation.
Mode of Operation
Model MPE3043AE MPE3084AE MPE3173AE All Models MPE3043AE MPE3084AE MPE3173AE
Spin up 1800 peak
Idle (Ready) (*3) 140
R/W (On Track) (*4) 180
Seek (Random) (*5) 270
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 mode is defined as continuous random seek operations with minimum controller delay.
1 - 6
Table 1.3

Current and power dissipation

Typical RMS current (*1) [mA]
+12 V
1800 peak 1800 peak
140 170
180 210
270 300
7.0 7.0 7.0
7.0 7.0 7.0
C141-E093-01EN
Typical Power (*2) [watts]
+5 V
540 21.9 21.9
640 peak
420 3.8
450 4.4
450 5.5
185 1.0
185 1.0
21.9
3.8 4.1
4.4 4.8
5.5 5.9
1.0 1.0
1.0 1.0