Seagate ST373207LC Cheetah 10K.7 SCSI Product Manual - Page 35

Physical/electrical specifications

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6.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the Cheetah 10K.7 SCSI drive. 6.1 None. AC power requirements 6.2 DC power requirements The voltage and current requirements for a single drive are shown in the following tables. Values indicated apply at the drive power connector. The table shows current values in Amperes. Table 2: DC power requirements Voltage Regulation Average idle current DC X Maximum starting current (peak DC) DC 3σ (peak AC) AC 3σ Delayed motor start (max) DC 3σ Peak operating current DC X Maximum DC 3σ Maximum (peak) DC 3σ Notes [5] [1][7] [3] [3] [1] [4] [1] [6] [1] ST3300007 SE mode LVD mode +5 V ±5% 0.54 +12 V ±5% [2] 0.62 +5 V ±5% 0.54 +12 V ±5% [2] 0.62 0.77 1.91 1.16 3.71 0.52 0.06 0.77 1.91 1.16 3.88 0.53 0.06 0.69 1.07 0.70 1.08 1.62 2.74 0.68 1.09 0.69 1.10 1.62 2.76 Cheetah 10K.7 SCSI Product Manual, Rev. D 25

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Cheetah 10K.7 SCSI Product Manual, Rev. D
25
6.0
Physical/electrical specifications
This section provides information relating to the physical and electrical characteristics of the Cheetah 10K.7
SCSI drive.
6.1
AC power requirements
None.
6.2
DC power requirements
The voltage and current requirements for a single drive are shown in the following tables. Values indicated
apply at the drive power connector. The table shows current values in Amperes.
Table 2:
DC power requirements
Notes
ST3300007
SE mode
LVD mode
Voltage
+5 V
+12 V
+5 V
+12 V
Regulation
[5]
±5%
±5%[2]
±5%
±5%[2]
Average idle current DC
X
[1][7]
0.54
0.62
0.54
0.62
Maximum starting current
(peak DC) DC
3
σ
(peak AC) AC
3
σ
[3]
[3]
0.77
1.16
1.91
3.71
0.77
1.16
1.91
3.88
Delayed motor start (max) DC
3
σ
[1][4]
0.52
0.06
0.53
0.06
Peak operating current
DC
X
Maximum DC
3
σ
Maximum (peak) DC
3
σ
[1][6]
[1]
0.69
0.70
1.62
1.07
1.08
2.74
0.68
0.69
1.62
1.09
1.10
2.76