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C141-E056-01EN1 - 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 All Models All Models All Models
Spin up 1300
1500 peak
500
600 peak
18.1
Idle (Ready) (*3) 300 380 5.50
R/W (On Track) (*4) 300 430 5.75
Seek (Random) (*5) 510 430 8.27
Standby 4 150 0.8
Sleep 4 150 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