Product manual

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.