Seagate Barracuda ST11950N, Руководство по эксплуатации продукта

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Barracuda 1 and 2 Product Manual, Rev. C 31
7.0 Physical/electrical specifications
This section provides information relating to the physical and electrical
characteristics of Barracuda 1 and 2 drives.
7.1 AC power requirements
None.
7.2 DC power requirements
The voltage and current requirements for a single drive are shown in
Tables 1 and 2 (table notes follow Table 2). Values indicated apply at the
drive’s power connector.
Table 1. DC power requirements
for ST11950N/ND and ST12550N/ND drives
ST11950N & ST11950ND &
ST12550N ST12550ND
5V
[8]
12V 5V
[8]
12V
Voltage regulation
[5]
Notes ±5% ±5%
[2]
±5% ±5%
[2]
Amps
Max operating current DC 3
σ
[1] 1.1 0.95 1.5 0.95
Avg idle current OD DC X [1] [9] 1.0 0.84 1.1 0.84
Max start current
(peak) DC 3
σ
[3] [6] 1.0 2.18 1.1 2.18
(peak) AC 3
σ
[3] – 3.1 – 3.1
Delay motor start (max)
DC 3
σ
[1] [4] 1.06 0.19 1.1 0.2
Peak operating current
Typical DC X [1] [7] 1.07 0.91 1.47 0.91
Maximum DC 3
σ
[1] 1.1 0.95 1.5 0.95
Maximum (peak) AC 3
σ
1.15 1.87 1.8 1.86
Track following at
OD DC X [1] 1.0 0.84 1.1 0.84
ID DC X [1] 1.0 0.9 1.1 0.9
Read track
OD DC 3
σ
[1] [11] 1.1 0.85 1.6 0.85
AC 3
σ
1.2 1.2 1.8 1.2
Seeking
Typical DC X [1] [10] 1.0 1.2 1.1 1.2
Maximum DC 3
σ
[1] 1.1 1.2 1.2 1.2
Maximum (peak) AC 3
σ
1.2 1.8 1.7 1.8