Seagate Mobile HDD Product Manual, Rev. A
13
Drive Specifications
2.6
Start/stop times
2.7
Power Specifications
The drive receives DC power (+5V) through a native SATA power connector (refer to
2.7.1
Power consumption
Power requirements for the drives are listed in the table in
. Typical power measurements are based on an average of drives tested, under
nominal conditions, at 25°C ambient temperature. These power measurements are done with DIPM enabled.
• Spinup current is measured from the time of power-on to the time that the drive spindle reaches operating speed.
• Read/Write current is measured with the heads on track, based on three 64 sector read or write operations every 100 ms.
• The drive supports three idle modes: Performance Idle mode, Active Idle mode and Low Power Idle mode. Refer to Section 2.7.4 for power-
management modes.
Table 4
Start/stop times
1-disk models
2-disk models
1-disk models
2-disk models
Typical seek times (ms)
Typical
Max @ 25°C
Power-on to ready (sec)
2.8
3.2
3.0
3.5
Power-on to ready (sec) (SED models)
3.0
3.5
3.2
3.7
Standby to ready (sec)
2.5
3.0
Table 5
DC Power Requirements
Power Dissipation
1-disk models
+5V input average (25° C)
2-disk models
+5V input average (25° C)
Spinup (max)
1.00A
Write average
1.70W
1.80W
Read average
1.60W
1.70W
Idle, low power mode
0.45W
0.50W
Standby
(1)
1.
Standby power is measured at steady state (after 200ms from transition)
0.13W
Sleep
0.13W
