Power Specifications; Power Consumption - Seagate ST9500530NS - Constellation 7200 500 GB Hard Drive Product Manual
Constellation serial ata
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Also See for ST9500530NS - Constellation 7200 500 GB Hard Drive:
- Product manual (46 pages) ,
- Datasheet (2 pages) ,
- Product overview (2 pages)
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2.8
Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 20.
2.8.1
Power consumption
Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on
an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient
temperature.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating
speed.
• Standby mode
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/
write electronics are in power-down mode.
Table 2:
DC power requirements
Parameter
Voltage
Regulation
Average Idle Current
Advanced Idle Current
Idle_A
Idle_B
Idle_C
Standby
Average Sleep Current
Maximum Start Current:
DC (Peak DC)
AC (Peak AC)
Delayed Motor Start (DC max)
Peak Operating Current (random read):
Typical DC
Maximum DC
Maximum DC (peak)
Peak Operating Current (random write):
Typical DC
Maximum DC
Maximum DC (peak)
Peak operating current (sequential read):
Typical DC
Maximum DC
Maximum DC (peak)
Peak operating current (sequential write):
Typical DC
Maximum DC
Maximum DC (peak)
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and
power to operational levels.
8
ST9500530NS
(1.5GB)
+5 V
+12 V
Power
+/-5%
+/-5%
(watts)
0.28
0.11
2.69
0.24
0.10
2.42
0.14
0.08
1.71
0.14
0.05
1.37
0.16
0.02
1.05
0.16
0.02
1.06
0.39
0.64
9.64
0.73
1.50
21.59
0.16
0.03
1.12
0.29
0.13
3.05
0.29
0.15
3.22
0.84
0.52
10.44
0.34
0.14
3.42
0.36
0.14
3.50
1.02
0.58
12.06
0.58
0.12
4.27
0.59
0.12
4.35
0.82
0.22
6.74
0.63
0.12
4.52
0.67
0.12
4.77
1.04
0.20
7.60
Constellation Serial ATA Product Manual, Rev. B
ST9500530NS
(3.0GB)
+5 V
+12 V
Power
+/-5%
+/-5%
(watts)
0.29
0.11
2.71
0.24
0.10
2.45
0.15
0.08
1.72
0.15
0.05
1.38
0.17
0.02
1.06
0.16
0.02
1.03
0.40
0.65
9.77
0.72
1.55
22.25
0.17
0.02
1.08
0.30
0.14
3.11
0.30
0.15
3.30
0.84
0.56
10.92
0.35
0.14
3.49
0.36
0.15
3.59
1.02
0.60
12.30
0.58
0.12
4.33
0.60
0.12
4.44
0.84
0.22
6.84
0.64
0.12
4.59
0.68
0.12
4.84
1.06
0.20
7.70
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