Conducted Noise; Figure 1. Typical Startup And Operation Current Profile - Seagate Pavilion 7700 Product Manual

U Series 5 Family Product Manual, Rev. B
Power Mode
Spinup
Seek (Random,
no read/write)
Performance mode
Operating (read/write)
Performance mode
Idle
Standby
Sleep
1.7.1.1 Typical current profile
Current (amps)
1.4
1.2
1
0.8
0.6
0.4
0.2
0
1.4
-0.2

Figure 1. Typical startup and operation current profile

1.7.2 Conducted noise

Typical Watts
RMS
—
9.6
7.1
4.8
1.4
1.0
2.9 4.4 5.9
Time (seconds)
Typical Amps RMS
5V 12V
0.9 1.5
0.52 0.58
0.67 0.31
0.57 0.16
0.20 0.032
0.13 0.032
7.4 8.9
9