Medalist 17242, 13032, 10232, 8422 and 4312, Rev. A

9

Operating power and current are measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads), and 20 percent drive inactive.

Idle mode power is measured with the drive up to speed, with servo electronics active, and with the heads in a random track location.

During Standby mode, the drive accepts commands, but the drive is not spinning, and servo and read/write electronics are in power-down mode.

Mode

Typical Watts RMS

Typical Amps RMS

 

 

5V

12V

Spinup

0.6 (Peak)

2.2 (Peak)

Seek

8.5

0.5

0.5

(Random,

 

 

 

no read/write)

 

 

 

Read/Write

5.5

0.5

0.25

Operating

7.3

0.5

0.4

Idle

5.5

0.5

0.25

Standby

1.08

0.2

0.007

Sleep

1.08

0.2

0.007

1.7.1.1 Typical current profile

Figure 1 shows a typical current profile.

Current (Amps)

 

 

 

 

 

 

 

 

 

2.0

 

 

 

 

 

 

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

 

1.0

 

 

 

 

 

 

 

 

 

 

0.5

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

0

1

2

3

4

5

6

7

8

9

10

Time (seconds)

Figure 1. Typical startup and operation current profile

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Image 17
Seagate Medalist 17242 manual Typical current profile, Mode Typical Watts RMS Typical Amps RMS 12V