Filter
Top Products
Savvio 10K.5 SAS Product Manual, Rev. D 25
[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 9,936 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 (for 900GB models) and Figure 2 (for 600GB models).
[4] See +12V current profile in Figure 3 (for 450GB models) and Figure 4 (for 300GB models).
Table 5: 300GB standard model DC power requirements
Notes
3.0Gb mode 6.0Gb mode
(Amps) (Amps) (Amps) (Amps)
Voltage +5V +12V [2] +5V +12V [2]
Regulation [6] ±5% ±5% [2] ±5% ±5% [2]
Avg idle current DC [1] [8] 0.34 0.15 0.35 0.15
Advanced Idle Current
Idle_A 3σ 0.37 0.16 0.38 0.16
Idle_B 3σ 0.25 0.14 0.26 0.14
Idle_C 3σ 0.25 0.08 0.26 0.08
Standby 3σ 0.25 0.06 0.26 0.06
Transition Current
Idle_A 3σ 0.99 1.52 1.02 1.55
Idle_B 3σ 0.84 1.52 0.92 1.51
Idle_C 3σ 0.85 1.46 0.84 1.53
Standby 3σ 1.06 1.54 0.92 1.50
Maximum starting current
(peak DC) DC 3σ [4] 0.59 0.85 0.58 0.85
(peak AC) AC 3σ [4] 0.96 1.52 0.93 1.48
Delayed motor start (max) DC 3σ [1] [5] 0.45 0.06 0.46 0.06
Peak operating current (random read):
Typical DC [1] [7] 0.46 0.43 0.46 0.43
Maximum DC 3σ [1] 0.49 0.45 0.50 0.46
Maximum (peak) DC 3σ 1.25 1.47 1.27 1.51
Peak operating current (random write)
Typical DC 0.54 0.34 0.55 0.34
Maximum DC 3σ 0.56 0.39 0.57 0.39
Maximum (peak) DC 3σ 1.13 1.49 1.13 1.49
Peak operating current (sequential read)
Typical DC 0.80 0.17 0.80 0.16
Maximum DC 3σ 0.90 0.18 0.90 0.18
Maximum (peak) DC 3σ 1.13 0.34 1.20 0.33
Peak operating current (sequential write)
Typical DC 0.87 0.16 0.87 0.16
Maximum DC 3σ 0.98 0.18 0.99 0.18
Maximum (peak) DC 3σ 1.26 0.32 1.30 0.30