Barracuda ATA III Family Product Manual, Rev. B
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Standby mode
During Standby mode, the drive accepts commands, but the drive is
not spinning, and the servo and read/write electronics are in power-
down mode.
1.7.1.1 Typical current profile
Figure 1. Typical startup and operation current profile
ST340824A, ST330620A, ST320414A,
ST315310A and ST310215A
Typical Amps RMS
Power Mode
Typical Watts RMS
5V
12V
Spinup
—
0.7
2.2 (peak)
Seeking (Random,
no read/write)
11.5
0.58
0.71
Operating (read/write)
8.0
0.93
0.54
Idle
6.0
0.53
0.28
Standby
1.5
0.21
0.04
Sleep
1.0
0.14
0.03
Time (seconds)
Current (Amps)
0
1
2
3
4
5
6
7
8
9
10
3.0
2.5
2.0
1.5
1.0
0.5
0
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