10 SV35.5 Series SATA Product Manual, Rev. C
2.8 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 1 on page 20.
2.8.1 Power consumption and DC power requirements
Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on
a
n 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.
• 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.
• Operating
Operating power is measured by simulating a typical
PVR operating environment, using a 50% write 50%
read algorithm.
• Standby mode
During Standby mode, the drive accepts commands, but th
e drive is not spinning, and the servo and read/
write electronics are in power-down mode.
Table 3: DC power requirements
Power dissipation (2-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0 (peak)
Idle*† 5.0 0.168 0.337
Idle*† (with offline activity) 5.40 0.153 0.387
Operating 6.57 0.496 0.341
Standby 0.79 0.35 0.01
Sleep 0.79 0.35 0.01
(2-disk)
Table 4:
Power dissipation (1-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0 (peak)
Idle*† 4.60 0.378 0.224
Idle*† (with offline activity) 4.50 0.250 0.240
Operating 6.19 0.656 0.243
Standby 0.79 0.35 0.01
Sleep 0.79 0.35 0.01
DC power requirements (1-disk)
*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 with DIPLM Enabled
