Seagate ST320005N4A1AS Barracuda 7200.9 PATA Product Manual - Page 31
Table 13, DC power requirements for 80GB and 40GB models, 8.1.1, Typical current profile
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Table 13: DC power requirements (for 80GB and 40GB models) Power dissipation (watts) Spinup Idle* Idle* (with offline activity) Operating (40% r/w, 40% seek, 20% inop.) Seeking (random, 20% idle) Standby Sleep Avg (watts, 25° C) - 7.00 8.90 12.60 12.20 0.80 0.80 Avg 5V typ amps - 0.490 0.873 0.897 0.627 0.116 0.116 Avg 12V typ amps 2.80 (peak) 0.379 0.378 0.676 0.755 0.018 0.018 *During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels. 2.8.1.1 Typical current profile Figure 1 Typical 5V startup and operation current profile Figure 2 Typical 12V startup and operation current profile Barracuda 7200.9 PATA Product Manual, Rev. F 25
Barracuda 7200.9 PATA Product Manual, Rev. F
25
Table 13:
DC power requirements (for 80GB and 40GB models)
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and
power to operational levels
.
2.8.1.1
Typical current profile
Figure 1
Typical 5V startup and operation current profile
Figure 2
Typical 12V startup and operation current profile
Power dissipation (watts)
Avg (watts, 25° C)
Avg 5V typ amps
Avg 12V typ amps
Spinup
—
—
2.80 (peak)
Idle*
7.00
0.490
0.379
Idle* (with offline activity)
8.90
0.873
0.378
Operating (40% r/w, 40% seek, 20% inop.)
12.60
0.897
0.676
Seeking (random, 20% idle)
12.20
0.627
0.755
Standby
0.80
0.116
0.018
Sleep
0.80
0.116
0.018