Seagate Enterprise Performance 15K HDD Savvio 15K Savvio 15K.1 FC User Guide - Page 33
Conducted noise immunity, Power sequencing, Current profiles
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6.2.1 Conducted 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 +12V 0 to 100 kHz 150mV 150mV 100 kHz to 10 MHz 100mV 100mV 6.2.2 Power sequencing The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down. 6.2.3 Current profiles The +12V and +5V current profiles are shown below. Note: All times and currents are typical. See Table 2 for maximum current requirements. Figure 2. Typical ST973451FC drive +12V and +5V current profiles Savvio 15K.1 FC Product Manual, Rev. B 25
Savvio 15K.1 FC Product Manual, Rev. B
25
6.2.1
Conducted 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.
6.2.2
Power sequencing
The drive does not require power sequencing. The drive protects against inadvertent writing during power-up
and down.
6.2.3
Current profiles
The +12V and +5V current profiles are shown below.
Note:
All times and currents are typical. See Table 2 for maximum current requirements.
Figure 2. Typical ST973451FC drive +12V and +5V current profiles
+5V
+12V
0 to 100 kHz
150mV
150mV
100 kHz to 10 MHz
100mV
100mV