Seagate ST9146753SS, ST9300653SS, ST9300553SS, ST9300453SS manual 146GB models DC power requirements

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Table 3:	146GB models DC power requirements

				3.0 Gb mode		6.0 Gb mode

Parameter			Notes	(Amps)	(Amps)	(Amps)	(Amps)

Voltage				+5V	+12V [2]	+5V	+12V [2]

Regulation			[5]	±5%	±5% [2]	±5%	±5% [2]

Avg idle current DC			[1] [7]	0.36	0.17	0.36	0.17

Standby		3σ		0.28	0.05	0.27	0.04

Maximum starting current
(peak DC) DC		3σ	[3]	0.67	0.86	0.67	0.86
(peak AC) AC		3σ	[3]	0.91	1.74	1.01	1.60

Delayed motor start (max) DC		3σ	[1] [4]	0.56	0.06	0.56	0.06

Peak operating current: (random read)
Typical DC			[1] [6]	0.50	0.41	0.48	0.42
Maximum DC		3σ	[1]	0.52	0.42	0.50	0.43
Maximum (peak) DC		3σ		1.37	1.25	1.29	1.24

Peak operating current: (random write)
Typical DC			[1]	0.59	0.32	0.57	0.33
Maximum DC		3σ	[1]	0.61	0.34	0.58	0.34
Maximum (peak) DC		3σ		1.20	1.27	1.12	1.25

Peak operating current: (sequential read)
Typical DC			[1]	0.87	0.18	0.84	0.19
Maximum DC		3σ	[1]	0.93	0.18	0.90	0.19
Maximum (peak) DC		3σ		1.22	0.43	1.21	0.41

Peak operating current: (sequential write)
Typical DC			[1]	1.00	0.18	0.98	0.19
Maximum DC		3σ	[1]	1.06	0.18	1.03	0.19
Maximum (peak) DC		3σ		1.32	0.36	1.34	0.36

[1]Measured with average reading DC ammeter. Instantaneous +12V current peaks will exceed these val- ues. Power supply at nominal voltage. N (number of drives tested) = 6, 35 Degrees C ambient.

[2]For +12 V, a –10% tolerance is allowed during initial spindle start but must return to ±5% before reaching 15K RPM. The ±5% must be maintained after the drive signifies that its power-up sequence has been completed and that the drive is able to accept selection by the host initiator.

[3]See +12V current profile in Figure 1.

[4]This condition occurs after OOB and Speed Negotiation completes but before the drive has received the Notify Spinup primitive.

[5]See paragraph 7.3.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response.

[6]Operating condition is defined as random 8 block reads.

[7]During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters to maximum track.

Savvio 15K.3 SAS Product Manual, Rev. A

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Contents ST9300453SS ST9146653SS ST9300653SSST9300553SS ST9146853SSST9146753SSStandard Models Self-Encrypting Drive Models SED FIPS140-2 ModelsPage Contents Installation Defect and error managementAbout Fips About self-encrypting drives Interface requirementsPage Savvio 15K.3 SAS Product Manual, Rev. a List of Figures Page Seagate Online Support and Services Seagate Technology support servicesScope Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibilityElectromagnetic compliance for the European Union Electromagnetic complianceAustralian C-Tick Korean KCCEuropean Union Restriction of Hazardous Substances RoHS Reference documents Scsi Commands Reference Manual SAS Interface ManualGeneral description Media description Standard featuresPerformance ReliabilityFormatted capacities Programmable drive capacity Factory installed optionsInternal drive characteristics Performance characteristicsSeek performance characteristics Access timeFormat command execution time General performance characteristicsStart/stop time Cache operation Prefetch/multi-segmented cache controlPrefetch operation Caching write dataError rates Reliability specificationsRecoverable Errors Unrecoverable ErrorsSeek errors Reliability and serviceInterface errors Preventive maintenance4 S.M.A.R.T Maximum processing delayControlling S.M.A.R.T Performance impactTemperature Log Page 0Dh Parameter Code Description Predictive failuresThermal monitor Drive Self Test DST State of the drive prior to testingDST failure definition ImplementationShort test Function Code 001b Short and extended testsExtended test Function Code 010b Log page entriesShipping Product warrantyProduct repair and return information StoragePhysical/electrical specifications PowerChoiceTM power managementPowerChoice modes DC power requirements AC power requirementsRegulation 300GB models DC power requirements146GB models DC power requirements General DC power requirement notes Power sequencingConducted noise immunity Current profile for 300GB models Current profilesCurrent profile for 146GB models Power dissipation 300GB models in 6Gb operation300GB models in 3Gb operation 146GB models in 3Gb operation 146GB models in 6Gb operationTemperature a. Operating Environmental limitsRelative humidity Effective altitude sea level a. Operating Shock and vibrationShock Recommended mounting Vibration a. Operating-normalAir cleanliness Corrosive environmentAcoustics Dimensions Mechanical specificationsAbout Fips PurposeLevel 2 security Admin SP Controlled accessAbout self-encrypting drives Data encryptionRandom number generator RNG Default passwordDrive locking Data bandsPower requirements Authenticated firmware downloadSupported commands Cryptographic eraseDefect and error management Drive internal defects/errorsDrive error recovery procedures Background Media Scan SAS system errorsMedia Pre-Scan Deferred Auto-ReallocationIdle Read After Write Protection Information PI Setting and determining the current Type LevelLevels of PI Identifying a Protection Information driveDrive orientation InstallationAir flow CoolingGrounding Drive mountingInterface requirements SAS featuresScsi commands supported Supported commandsDual port support Supported commands Supported commands Supported commands Mode Sense data Inquiry dataSavvio inquiry data Page Mode Data Header Mode Data Header Miscellaneous operating features and conditions Miscellaneous featuresMiscellaneous status SAS physical interface Datum B Section C C Section a a Connector requirements Physical characteristicsElectrical description Pin descriptionsPower Signal characteristicsSAS transmitters and receivers Ready LED OutLED drive signal SAS-2 Specification complianceDifferential signals General interface characteristicsNumerics IndexPage Msid Mtbf See also cooling Page Savvio 15K.3 SAS Product Manual, Rev. a