S
EAGATE
E
NTERPRISE
P
ERFORMANCE
15K HDD
V
5
AND
T
URBO
SSHD
V
2 P
RODUCT
M
ANUAL
, R
EV
. B
21
[1]
Measured with average reading DC ammeter. Instant12V 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]
[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.
Table 4
600GB models DC power requirements
Notes
600GB Base - Hybrid
6.0 Gb mode
12.0 Gb mode
Parameter
(Amps)
(Amps)
(Amps)
(Amps)
Voltage
+5V
+5V
Regulation
[5]
±5%
±5% [2]
±5%
±5% [2]
Avg idle current DC
0.34
0.29
0.36
0.29
Advanced Idle Current
Idle1
3
0.35
0.31
0.38
0.30
Idle2
3
0.26
0.25
0.29
0.25
Idle3
3
0.26
0.13
0.29
0.13
Standby
3
0.25
0.01
0.27
0.01
Maximum Start current
DC (peak DC)
3
0.56
1.01
0.58
1.01
AC (peak AC)
3
0.69
1.61
0.74
1.62
Delayed motor start (max) DC
3
0.26
0.01
0.28
0.01
Peak operating current: (random read)
Typical DC
0.42
0.54
0.44
0.54
Maximum DC
3
0.43
0.57
0.46
0.58
Maximum (peak) DC
3
1.21
1.48
1.24
1.47
Peak operating current: (random write)
Typical DC
0.41
0.49
0.43
0.49
Maximum DC
3
0.43
0.51
0.45
0.53
Maximum (peak) DC
3
0.89
1.58
0.85
1.53
Peak operating current: (sequential read)
Typical DC
0.66
0.31
0.67
0.31
Maximum DC
3
0.69
0.32
0.69
0.32
Maximum (peak) DC
3
0.94
0.74
1.12
0.92
Peak operating current: (sequential write)
Typical DC
0.58
0.34
0.60
0.34
Maximum DC
3
0.61
0.35
0.62
0.35
Maximum (peak) DC
3
0.78
0.76
0.86
0.83
