Seagate Thin Manual descargar pdf (Pagina 14)

8 Momentus Thin Product Manual, Rev. E

3.8 Start/stop times

Time to ready Typical

Max @ 25°C

Power-on to Ready (sec) 3.5 4.0

Standby to Ready (sec) 3.0 3.0

3.9 Power specifications

The drive receives DC power (+5V) through a native SATA power connector.

3.9.1 Power consumption

Power requirements for the drives are listed in the table on p

age 8. Typical power measurements are based on

an average of drives tested, under nominal conditions, at 25°C ambient temperature. These power measure-

ments are done with Interface Power Management modes like HIPM and DIPM enabled.

• Spinup power

Spinup power is measured from the time of power-on to the time

that the drive spindle reaches operating speed.

• Seek mode

During seek mode, the read/write actuator arm moves toward

a specific position on the disk surface and does

not execute a read or write operation. Servo electronics are active. Seek mode power is measured based on

three random seek operations every 100ms. This mode is not typical.

• Read/write power and current

Rea

d/write power is measured with the heads on track, base

d on three 63 sector read or write operations

every 100ms.

• Idle mode power

Idle mode power is measured with the drive up to speed, with ser

vo electronics active and with the heads in

a random track location.

• Standby mode

During Standby mode, the drive accepts commands, but the d

rive is not spinning, and the servo and read/

write electronics are in power-down model

Table 3: DC power

Power dissipation +5V input average (25° C)

Spinup (max) 1.00A

Seek 1.4W

Read 1.3W

Write 1.65W

Idle, performance* 1.1W

Idle, active* 0.68W

Idle, low power mode* 0.48W

Standby** 0.15W

Sleep 0.15W

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

**Standby power is measured at steady state (after 200ms from transition)

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