Seagate ST3600002SS, ST3450802SS Conducted noise immunity, Power sequencing, Current profiles

6.2.1Conducted noise immunity

Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector.

+5V	=	250 mV pp from 0 to 100 kHz to 20 MHz
+12V	=	800 mV pp from 100 Hz to 8 KHz
		450 mV pp from 8 KHz to 20 KHz
		250 mV pp from 20 KHz to 5 MHz

6.2.2Power sequencing

The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down.

6.2.3Current profiles

The +12V and +5V current profiles are shown below in figure 1.

Note: All times and currents are typical. See Table 12 for maximum current requirements.

Cheetah NS 10K.2 SAS Product Manual, Rev. C 21