Seagate Cheetah NS 10K Cheetah NS 10K.2 FC Product Manual - Page 30

The +12V and +5V current profiles for the ST3600002FC, ST3450802FC and ST3300602FC models are

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7.2.1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a defined frequency range. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector. +5 V = +12 V = 250 mV pp from 100 Hz to 20 MHz. 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. 7.2.2 Power sequencing The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down. 7.2.3 Current profiles The +12V and +5V current profiles for the ST3600002FC, ST3450802FC and ST3300602FC models are shown below. Note: All times and currents are typical. See Tables 2 and 3 for maximum current requirements. Figure 1. Typical ST3600002FC drive, 4 Gbit, +5V and +12V current profiles 24 Cheetah NS 10K.2 FC Product Manual, Rev. D

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24
Cheetah NS 10K.2 FC Product Manual, Rev. D
7.2.1
Conducted noise immunity
Noise is specified as a periodic and random distribution of frequencies covering a defined frequency range.
Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power
connector.
7.2.2
Power sequencing
The drive does not require power sequencing. The drive protects against inadvertent writing during power-up
and down.
7.2.3
Current profiles
The +12V and +5V current profiles for the ST3600002FC, ST3450802FC and ST3300602FC models are
shown below.
Note:
All times and currents are typical. See Tables 2 and 3 for maximum current requirements.
Figure 1.
Typical ST3600002FC drive, 4 Gbit, +5V and +12V current profiles
+5 V
=
250 mV pp from 100 Hz to 20 MHz.
+12 V
=
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.