Seagate Constellation ES ST31000524NS Product Manual page 17

Table 4:
500GB Drive
Voltage
Regulation
Avg Idle Current *
Advanced Idle Current *
Idle_A
Idle_B
Idle_C
Standby
Transition Current *
Idle_A (Active)
Idle_B (Active)
Idle_C (Active)
Standby (Active)
Average Sleep Current
Maximum Start Current
DC (peak DC)
AC (Peak DC)
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.
Constellation ES Serial ATA Product Manual, Rev. D
DC power requirements
+5V
±5%
0.26
0.13
0.13
0.13
0.09
0.84
0.70
0.70
0.80
0.09
0.36
0.55
0.09
0.29
0.30
1.00
0.31
0.31
1.20
0.62
0.63
1.02
0.66
0.67
1.34
1.5Gb mode
+12V Power +5V
±5% (Watts) ±5%
0.20 3.71 0.28
0.21 3.13 0.14
0.18 2.82 0.14
0.07 1.50 0.14
0.01 0.53 0.09
0.52 10.44 0.84
1.11 16.81 0.80
2.45 32.91 0.72
2.59 35.08 0.84
0.01 0.54 0.09
2.03 26.14 0.36
2.59 33.83 0.63
0.01 0.55 0.09
0.42 6.45 0.29
0.42 6.56 0.30
1.38 27.56 1.00
0.32 5.32 0.31
0.33 5.48 0.31
1.40 22.80 1.20
0.21 5.63 0.62
0.21 5.72 0.63
0.46 10.62 1.02
0.21 5.84 0.66
0.21 5.92 0.67
0.46 12.22 1.30
3.0Gb mode
+12V Power
±5% (Watts)
0.20 3.74
0.21 3.17
0.18 2.85
0.07 1.52
0.01 0.55
0.54 10.68
1.13 17.56
2.43 32.77
2.59 35.28
0.01 0.56
2.03 26.14
2.59 34.24
0.01 0.59
0.42 6.47
0.42 6.54
1.38 21.32
0.31 5.31
0.32 5.45
1.38 22.56
0.21 5.62
0.21 5.72
0.46 10.62
0.21 5.82
0.21 5.89
0.48 12.26
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