Electrical Requirements; Psu Requirements; Internal And Rack-Mounted Drives; Power Consumption - HP LTO-4 Technical Reference Manual

3

Electrical requirements

PSU requirements

Internal and rack-mounted drives

NOTE: SAS drives should be powered from the normal rear panel connector, not through the
power part of the SAS connector.
Drives are specified to operate at 5V±5% and 12V±10%. Any PSU used to power the drive must be
capable of providing 5V nominal (when the drive pulls 5A on the 5V rail) and 12V nominal (when
the drive pulls 2A on the 12V rail). HP recommends a 10% buffer when selecting a power supply
source capable of delivering the amperage and power required.
Specification
Max voltage
Min voltage
Max steady-state current
Max transient current
Max steady-state power
Max transient power
Max noise/ripple
* The current values are calculated based on constant power and minimum power supply voltage.

Power consumption

Power Requirements
5V DC
12V DC
Activity
Power-up
Idle
Load
Unload
Write (motor start-up)
FC Drives
5V
5.25V
4.75V
4.2A
4.5A
21W
22.5W
mVpp
tbd tbd
Internal Drives
<30W (<52W max.)
4.2A typ. (4.5A max.)
0.8A typ. (2.5A max.)
FC Drives
Average Peak
11.23W 22.10W
11.55W 11.99W
14.97W 34.56W
16.14W 42.54W
27.76W 51.71W
HP LTO Ultrium 4 drives technical reference manual, volume 4: specifications
HP restricted
SCSI Drives
12V 5V
13.2V 5.25V
10.8V 4.75V
0.75A
tbdA
2.5A
tbdA
9W
tbdW
30W
tbdW
mVpp mVpp
tbd
External Drives
100–240 VAC 50/60 Hz 0.8A max.
SCSI Drives
Average Peak
tbdW tbdW
tbdW tbdW
tbdW tbdW
tbdW tbdW
tbdW tbdW
SAS Drives
12V 5V
13.2V 5.25V
10.8V 4.75V
tbdA tbdA
tbdA tbdA
tbdW tbdW
tbdW tbdW
mVpp mVpp
tbd tbd
SAS Drives
Average Peak
tbdW tbdW
tbdW tbdW
tbdW tbdW
tbdW tbdW
tbdW tbdW
12V
13.2V
10.8V
tbdA
tbdA
tbdW
tbdW
mVpp
tbd
15