2.8.1.1Typical current profile

Figure 1. Typical 5V startup and operation current profile

2.8.2Conducted 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.

2.8.3Voltage tolerance

Voltage tolerance (including noise):

5V ± 5%

10

LD25 Series 5400.2 Product Manual, Rev. C

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Seagate ST960210AS, ST980210AS, ST940210AS, ST920210AS Typical current profile, Conducted noise, Voltage tolerance