Figure 1. Typical Startup And Operation Current Profile - Seagate ULTRA ATA ST310212A Product Manual

U10 Family Product Manual, Rev. A
Power Mode
Spinup
Seeking (Random,
no read/write)
Operating (read/write)
Idle
Standby/Sleep
1.7.1.1 Typical current profile
Current (amps)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0 1 2

Figure 1. Typical startup and operation current profile

Typical Amps RMS
Typical Watts
5V
RMS
— 0.65
7.0 0.4
6.5 0.46
3.5 0.28
0.8 0.123
3 4 5 6
Time (seconds)
9
12V
1.5
0.42
0.350
0.170
0.015
7 8 9