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C141-E072-01EN1 - 6
(3) 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 MPD3091AH MPD3137AH MPD3182AH All Models MPD3091AH MPD3137AH MPD3182AH
Spin up 2100
2300 peak
2100
2300 peak
2100
2300 peak
630
700 peak
28.4 28.4 28.4
Idle (Ready) (*3) 270 330 390 305 4.8 5.5 6.2
R/W (On Track) (*4) 340 400 460 585 7.0 7.7 8.4
Seek (Random) (*5) 580 640 700 570 9.8 10.5 11.3
Standby 6.5 6.5 6.5 157 0.9 0.9 0.9
Sleep 6.5 6.5 6.5 152 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