Seagate ST300MP0004 Product Manual page 27

Table 4 600GB models DC power requirements
Parameter
Voltage
Regulation
Avg idle current DC
Advanced Idle Current
Idle1
Idle2
Idle3
Standby
Maximum Start current
DC (peak DC)
AC (peak AC)
Delayed motor start (max) DC
Peak operating current: (random read)
Typical DC
Maximum DC
Maximum (peak) DC
Peak operating current: (random write)
Typical DC
Maximum DC
Maximum (peak) DC
Peak operating current: (sequential read)
Typical DC
Maximum DC
Maximum (peak) DC
Peak operating current: (sequential write)
Typical DC
Maximum DC
Maximum (peak) DC
[1] Measured with average reading DC ammeter. Instantaneous +12V current peaks will exceed these values. Power supply at nominal
voltage. N (number of drives tested) = 6, 35 Degrees C ambient.
[2] For +12 V, a –10% tolerance is allowed during initial spindle start but must return to ±5% before reaching 15K RPM. The ±5% must
be maintained after the drive signifies that its power-up sequence has been completed and that the drive is able to accept selection
by the host initiator.
[3] See +12V current profile in Figure 1.
[4] This condition occurs after OOB and Speed Negotiation completes but before the drive has received the Notify Spinup primitive.
[5] See paragraph 6.3.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response.
[6] Operating condition is defined as random 8 block reads.
[7] During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters to maximum
track.
S E P
EAGATE NTERPRISE ERFORMANCE
Notes
[5]
[1] [7]
3
3
3
3
3 [3]
3 [3]
3 [1] [4]
[1] [6]
3 [1]
3
[1]
3 [1]
3
[1]
3 [1]
3
[1]
3 [1]
3
15K HDD 4 T SSHD P
V AND URBO
600GB Base - Hybrid
3.0 Gb mode
(Amps) (Amps) (Amps)
+5V +12V [2]
±5% ±5% [2]
0.34 0.30
0.39 0.33
0.28 0.27
0.28 0.14
0.26 0.01
0.73 0.97
0.89 1.58
0.27 0.01
0.44 0.52
0.48 0.54
1.96 1.57
0.42 0.48
0.47 0.51
1.13 1.55
0.78 0.32
0.84 0.34
1.15 0.82
0.64 0.36
0.72 0.40
0.90 0.81
M , R . C
RODUCT ANUAL EV
6.0 Gb mode
(Amps)
+5V +12V [2]
±5% ±5% [2]
0.34 0.30
0.39 0.33
0.29 0.27
0.28 0.14
0.27 0.01
0.73 0.96
0.90 1.56
0.27 0.01
0.44 0.52
0.49 0.54
1.93 1.58
0.42 0.48
0.47 0.50
1.05 1.54
0.80 0.32
0.86 0.34
1.04 0.78
0.65 0.36
0.73 0.40
0.86 0.80
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