6 Lyrion Series IDE Product Manua l, Rev. B
2.7 Power specificationsThe drive receives DC power (+3.3V) through the ZIF connector (IDE interface).
2.7.1 Power consumption
Power requirements for the drives are listed in the table on page 7. Typical power measurements are ba sed o n
an average of drives tested, under nominal conditions, using +3.3V input voltage at 25°C ambient temperature.
• Startup mode
Startup 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 disc surface and does
not execute a read or write operation. Servo electronics are active. Seek power is measured based on three
random seek operations every 100 msecs.
•Read/write mode
Read/write power is measured with the heads on track, while the head is reading/writing from/to disc. It is
performed with 100 percent duty cycle of read/write operation.
• Performance Idle mode
During Performance Idle mode, the heads are on track but no reading or writing is done. The spindle motor is
spinning at full speed.
• Low power idle mode
During Low power Idle mode, the heads are unloaded but the spindle motor is spinning at full speed. Servo
and read/write electronics are in powered down mode.
• Standby / Sleep mode
During Standby/Sleep mode, the spindle motor is not spinning, and the servo and read/write electronics are
in powered down mode.