Seagate ST91000642NS manual Power specifications, Power consumption, Spinup power, Standby mode

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3.8Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 5 on page 26.

3.8.1Power consumption

Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature.

• Spinup power

Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.

• Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/ write electronics are in power-down mode.

The standard drive models and the SED drive models have identical hardware, however the security and encryption portion of the drive controller ASIC is enabled and functional in the SED models. This represents a small additional drain on the 5V supply of about 30mA and a commensurate increase of about 150mW in power consumption. There is no additional drain on the 12V supply.

Constellation.2 Serial ATA Product Manual, Rev. B

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Contents ST91000642NS ST9500622NS ST9250612NS Standard Models Self-Encrypting Drive ModelsSED Fips 140-2 Models Revision Date Sheets affected or comments Revision historyContents Serial ATA Sata interface List of Figures Page Seagate Online Support and Services Seagate Technology support servicesIntroduction About the Serial ATA interface Specification summary tables Drive specificationsDrive specifications summary for 1TB, 500 and 250 GB models Constellation.2 Serial ATA Product Manual, Rev. B Recording and interface technology Default logical geometryLBA mode Formatted capacityTypical seek times ms Read Write Physical characteristicsSeek time Start/stop timesStandby mode Power specificationsPower consumption Spinup powerRegulation +10/-7.5% Watts 1000GB drive Standard & SED model DC power requirementssPower ST91000640NS Parameter 0GB Voltage +12ST9500620NS Parameter 0GB Voltage +12 500GB drive Standard & SED model DC power requirementsST9250610NS Parameter 0GB Voltage +12 250GB drive Standard & SED model DC power requirementsTypical current profiles Voltage tolerance Conducted noiseSleep mode Power-management modesActive mode Idle modePower Condition Name Power Condition ID Description PowerChoice is invoked using one of two methodsTemperature a. Operating Environmental limitsRelative humidity Nonoperating shock Effective altitude sea levelShock Operating shockNonoperating vibration AcousticsVibration Operating vibrationTest Description Performance level Reference standard Electromagnetic immunityReliability Radio frequency environmentsAgency certification Product warranty Environmental protectionReference documents Shipping StorageProduct repair and return information China Restriction of Hazardous Substances RoHS Directive Corrosive environmentHandling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewAir flow CoolingAbout Fips PurposeLevel 2 security Data encryption Controlled accessAdmin SP About self-encrypting drivesData bands Default passwordRandom number generator RNG Drive lockingCryptographic erase Authenticated firmware downloadPower requirements Supported commandsHot-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 Bit Word Description if bit is set to Bit WordWord Set Features command values Set Features command3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Index ITE Page Constellation.2 Serial ATA Product Manual, Rev. B Page Disc Drive, Scotts Valley, California 95066-4544, USA