Seagate ST3500620SS ユーザーズマニュアル

24

Barracuda ES.2 SAS Product Manual, Rev. E

 

 

[1] Measured with average reading DC ammeter or equivalent sampling scope. Instantaneous +12V current 

peaks will exceed these values. Power supply at nominal voltage. N (number of drives tested) = 6, 35 
Degrees C ambient.

[2] For +12 V, a –10% tolerance is allowed during initial spindle start but must return to ±5% before reaching 

7,200 RPM. The ±5% must be maintained after the drive signifies that its power-up sequence has been 
completed and that the drive is able to accept selection by the host initiator. 

[3] See +12V current profile in Figure 2.

 

Voltage

+5V

+12V [2]

Regulation

[5]

±5%

±5% [2]

Avg idle current DCX

[1] [6]

0.60

0.50

Maximum starting current

(peak DC) DC

3

σ

0.90

2.00

(peak AC) AC

3

σ

1.10

3.50

Delayed motor start (max) DC 3

σ

0.60

0.17

Peak operating current:

     Typical DCX

0.62

0.78

     Maximum DC

3

σ

0.74

0.82

     Maximum (peak) DC

3

σ

1.15

1.75

Voltage

+5V

+12V [2]

Regulation

[5]

±5%

±5% [2]

Avg idle current DCX

[1] [6]

0.60

0.50

Maximum starting current

(peak DC) DC

3

σ

[3]

0.90

2.00

(peak AC) AC

3

σ

[3]

1.10

3.50

Delayed motor start (max) DC 3

σ

0.60

0.17

Peak operating current:

     Typical DCX

[1]

0.62

0.78

     Maximum DC

3

σ

[1]

0.74

0.82

     Maximum (peak) DC

3

σ

1.15

1.75