Seagate ST3600857SS, ST3300457SS, ST3450657SS manual GB DC power requirements

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Table 16: 300 GB DC power requirements

			3 Gbit mode			6 Gbit mode

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

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

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

Avg idle current		[1] [7]	0.34		0.58	0.35		0.58

Maximum starting current
(peak DC) DC	3σ	[3]	0.53		1.92	0.54		1.92
(peak AC) AC	3σ	[3]	0.98		3.82	0.86		3.98

Delayed motor start (max) DC	3σ	[1] [4]	0.47		0.04	0.48		0.04

Peak operating current (random read):
Typical DC	[1][6]	[1]	0.41		0.88	0.42		0.90
Maximum DC	3σ	[1]	0.42		0.95	0.43		0.95
Maximum DC (peak)	3σ		1.18		2.78	1.20		2.74

Peak operating current (random write):
Typical DC	[1][6]	[1]	0.48		0.80	0.49		0.81
Maximum DC	3σ	[1]	0.49		0.83	0.51		0.82
Maximum DC (peak)	3σ		1.18		2.68	1.20		2.66

Peak operating current (sequential read):
Typical DC	[1][6]	[1]	0.91		0.59	0.92		0.59
Maximum DC	3σ	[1]	0.93		0.60	0.94		0.61
Maximum DC (peak)	3σ		1.20		0.98	1.24		1.00

Peak operating current (sequential write):
Typical DC	[1][6]	[1]	0.89		0.58	0.90		0.59
Maximum DC	3σ	[1]	0.93		0.60	0.94		0.60
Maximum DC (peak)	3σ		1.22		0.98	1.22		0.96

[1]Measured with average reading DC ammeter or equivalent sampling scope. Instantaneous +12V current peaks will exceed these values. 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 15,000 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 7.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response.

Cheetah 15K.7 SAS Product Manual, Rev. D

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Contents ST3450657SS ST3600857SSST3300457SS Standard models Self-Encrypting Drive modelsPage Contents Installation Defect and error managementAbout Fips About self-encrypting drives Interface requirementsPower Cheetah 15K.7 SAS Product Manual, Rev. D Seagate Online Support and Services Seagate Technology support servicesScope Standards Standards, compliance and reference documentsElectromagnetic compatibility Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS ComplianceReference documents General description Performance Standard featuresMedia description Reliability Factory-installed optionsFormatted capacities Programmable drive capacityInternal drive characteristics Performance characteristicsAccess time Seek timeStart/stop time Format command execution time minutesGeneral performance characteristics Cache operation Prefetch/multi-segmented cache controlPrefetch operation Caching write dataError rates Reliability specificationsRecoverable Errors Unrecoverable ErrorsSeek errors Reliability and serviceInterface errors Preventive maintenanceControlling S.M.A.R.T 4 S.M.A.R.TPerformance impact MillisecondsDetermining rate Reporting controlPredictive failures Thermal monitorState of the drive prior to testing Temperature Log Page 0Dh Parameter Code DescriptionDrive Self Test DST DST failure definitionShort and extended tests Invoking DSTShort test Function Code 001b Extended test Function Code 010bAbort Product warrantyShipping Product repair and return informationDC power requirements Physical/electrical specificationsAC power requirements Gbit mode Amps 600 GB DC power requirements450 GB DC power requirements 300 GB DC power requirements Current profiles Power sequencingConducted noise immunity Typical 600GB current profiles Typical 300GB current profiles Power dissipation 450GB model Environmental limits Temperature a. OperatingEffective altitude sea level a. Operating Relative humidityShock and vibration ShockPackage size Packaged/product weight Drop height Recommended mounting Vibration a. Operating-normalAcoustics Air cleanlinessCorrosive environment RoHS compliance statementUnits of Measure mm inches Mechanical specificationsLevel 2 security About FipsPurpose Admin SP Controlled accessAbout self-encrypting drives Data encryptionRandom number generator RNG Authenticated firmware downloadDrive locking Data bandsSupported commands Power requirementsDrive error recovery procedures Defect and error managementDrive internal defects/errors Page Background Media Scan SAS system errorsIdle Read After Write Media Pre-ScanDeferred Auto-Reallocation Cooling InstallationDrive orientation Grounding Drive mountingInterface requirements SAS featuresDual port support Scsi commands supportedCommands supported by Cheetah 15K.6 SAS family drives Commands supported by Cheetah 15K.6 SAS family drives Commands supported by Cheetah 15K.6 SAS family drives Commands supported by Cheetah 15K.6 SAS family drives Cheetah 15K.7 inquiry data Bytes Data hex Inquiry dataMode Sense data Mode Pages 12.3.2.1 600GBmodel Mode Sense dataDEF CHG Mode Data Header Block Descriptor Mode Pages 12.3.2.2 450GB model Mode Sense dataDEF CHG Read Capacity Data Buffer C D E F Mode Pages 12.3.2.3 300GB model Mode Sense dataMiscellaneous features Miscellaneous operating features and conditionsSAS physical interface Miscellaneous statusDatum B Connector requirements Physical characteristicsSAS pin descriptions Electrical descriptionPin descriptions Power Signal characteristicsSAS transmitters and receivers Ready LED OutLED drive signal SAS-2 Specification complianceDifferential signals General interface characteristicsCheetah 15K.7 SAS Product Manual, Rev. D Numerics IndexPage SAS Smart

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