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2.9.1.1
Typical current profile
1.2
1.0
0.8
Amps
0.6
0.4
0.2
0.0
Figure 2. Typical 5V startup and operation current profile
2.9.2
Conducted noise
Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on
the +5 volt line.
Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave
injected noise at up to 10 MHz.
Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write
current.
2.9.3
Voltage tolerance
Voltage tolerance (including noise):
5V ± 5%
Momentus 5400.1 Product Manual, Rev. F
+5 Volt Current during spindle start — Typical Amperes
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Seconds
4.5
4.0
9
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