Seagate ST1500DL003 manual Start/stop times, Power specifications, Power consumption, Spinup power

www.seagate.comDrive Specifications

2.7 Start/stop times

Start/stop times @ 25°C	2000 and 1500GB models
Power-on to ready (max)	<17.0s
Standby to ready (max)	<17.0s
Ready to spindle stop (max)	10.0s

2.8Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. (Refer to Figure 3 ).

2.8.1 Power consumption

Power requirements for the drives are listed in Table 2 on page 15. 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.

•	Read/write power and current
	Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-ms delay,
	then a 16-sector read followed by a 32-ms delay.
•	Operating power and current
	Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10
	reads) and 20 percent drive idle mode.
• Idle mode power
	Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a
	random track location.
• 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.
Table 2 DC power requirements
	Power dissipation (3/2-disk values shown)	Avg (watts 25°C)	Avg 5V typ amps	Avg 12V typ amps
	Spinup	—	—	2.0
	Idle* †	4.5	0.151	0.303
	Operating	5.8	0.440	0.300
	Standby	0.50	0.085	0.01
	Sleep	0.50	0.085	0.01

*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.

†5W IDLE, Standby and Sleep,with DIPLM Enabled

Barracuda Green SATA Product Manual, Rev. B 15