Read/Write power and current are measured with the heads on track,
based on a 16-sector write followed by a 32-msec delay, then a 16-sector
read followed by a 32-msec delay.
Operating power and current are measured using 40 percent random
seeks, 40 percent read/write mode (1 write for each 10 reads), and 20
percent drive inactive.
Idle mode power is measured with the drive up to speed, with servo
electronics active, and with the heads in a random track location.
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.
Mode
Typical Watts RMS
Typical Amps RMS
5V
12V
Spinup
0.5
1.7 (Peak)
Seeking 5.5
(Random,
no read/write)
0.38
0.30
Read/Write
4.3
0.40
0.19
Operating
4.5
0.38
0.21
Idle
3.7
0.38
0.15
Standby
0.8
0.16
—
Sleep
0.8
0.16
—
Medalist 6540, 5130 and 3220 Product Manual, Rev. A
9
