Table 3: 500GB drive (Standard & SED model) DC power requirements
[1]Measured with average reading DC ammeter.
[2]Instantaneous +12V current peaks will exceed these values.
[3]Power supply at nominal voltage. N (number of drives tested) = 6, 35 Degrees C ambient.
[4]For +12 V, a
[5]See +12V current profile in Figure 1.
[6]This condition occurs after OOB and Speed Negotiation completes but before the drive has received the Notify Spinup primitive.
[7]See paragraph 7.3.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response.
[8]Operating condition is defined as random 8 block reads.
[9]During idle, the drive heads are relocated every 30 seconds to a random location within the band from
Constellation.2 SAS Product Manual, Rev. H | 25 |