Seagate MEDALIST PRO ST36530N/W/WC User Manual

Page 21

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Medalist Pro Installation Guide, Rev. B

19

Table 2b.

DC power requirements (Amps) for LW/LC
models

Notes for Tables 2a and 2b.

[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

ST39140
LW/LC

ST34520
LW/LC

Voltage

+5V +12V

+5V +12V

Regulation [5]

±5% ±5% [2] ±5% ±5%[2]

Max. operating
current DC

[1]

0.81 2.4

0.81 2.4

Avg. idle current
DCX [1]

0.53 0.90

0.53 0.90

Max. starting
current

(peak DC) DC [3]
(peak AC) AC [3]

2.5
N/A

2.5
N/A

Delayed motor
start (max)

DC

[1] [4]

0.51 0.16

0.51 0.16

Peak operating
current

Typical DCX [1][6]
Maximum DC

[1]

0.58
0.81

1.0
1.53

0.58
0.81

1.0
1.37

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