Seagate ST3250310CS manual Typical current profiles, Conducted noise, Voltage tolerance

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2.8.1.1Typical current profiles

Figure 1. Typical 5V startup and operation current profile

Figure 2. Typical 12V startup and operation current profile

2.8.2Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected noise at up to 10 MHz.

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%

12V ± 10%

DB35.4 Series SATA Product Manual, Rev. B

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Contents ST3250310CS DB35.4 Series SataRevision Date Revision historyContents DB35.4 Series Sata Product Manual, Rev. B List of Figures Page Introduction About the Serial ATA interface Specification summary tables Drive specificationsDrive specification ST3250310CS Drive specifications summary for 250 Gbyte modelDB35.4 Series Sata Product Manual, Rev. B Recording and interface technology Default logical geometryLBA mode Formatted capacityTypical seek times msec Read Write Physical characteristicsSeek time Start/stop timesPower specifications Typical current profiles Conducted noiseVoltage tolerance Sleep mode Power-management modesActive mode Idle modeEnvironmental specifications Vibration Operating vibrationNonoperating vibration Test for Prominent Discrete Tones PDTs Drive A-weighted Sound Power Levels SWL, BAAcoustics emissions Electromagnetic immunityAnnualized Failure Rate AFR Safety certificationReliability Agency certificationKorean RRL Australian C-Tick N176FCC verification Environmental protection Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensionsDB35.4 Series Sata Product Manual, Rev. B Hot-Plug compatibility Serial ATA Sata interfacePin Function Definition Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions SignalSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Word Description Value Identify Device commandXx07H 129 Seagate-reserved Bit Word Description if bit is set to Bit WordSet Features command values Set Features command3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Technical Support Seagate Technology support servicesInternet Presales SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index ITE Page DB35.4 Series Sata Product Manual, Rev. B Page Seagate Technology LLC