Seagate BARRACUDA 36 ST136475LW/LC Guía de instalación descargar pdf (Pagina 19)

Barracuda 36 Installation Guide, Rev. B 17

Table 2. DC power requirements (Amps), multimode

(SE/LVD)

[1] Measured with an average reading DC ammeter. Instanta-

neous +12V current peaks will exceed these values.

[2] A –10% droop is permissible during initial start of the spindle

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 the +12V current profile in the

Barracuda 36 Product

Manual

(publication number 77767528).

[4] This condition occurs when the Motor Start option is enabled

and the drive has not yet received a Start Motor command.

ST136475LW/LC

Voltage +5V +12V

Regulation [5] ±5% ±5%[2]

Max. operating current

DC [1] 1.4 1.5

Avg. idle current

DCX

[1] 0.75 0.8

Max. starting current

(peak DC) [3]

(peak AC) [3]

1.05

—

2.8

4.2

Delayed motor

start (max) [1][4] 0.65 0.030

Peak operating current

Typical DCX

[1][6]

Maximum DC [1]

Maximum (peak)

1.05

1.4

1.7

1.3

1.5

3.15

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Seagate BARRACUDA 36 ST136475LW/LC Guía de instalación Pagina 19

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