Hitachi HUS154530VLF400 User Manual
Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
30
9.1 Power Supply Current, Average and Peak
The following current and power requirements are typical when operating under the following conditions: Nominal 5 and 12V,
Background Media Scan (BMS) disabled for Idle, Write Caching disabled and the drive reporting a temperature of 45C.
Background Media Scan (BMS) disabled for Idle, Write Caching disabled and the drive reporting a temperature of 45C.
M odel FC 4 Gb/ s
4 5 0 GB
Cur r ent
Cur r ent
Power
Note
IO / Sec
+5 V
+1 2 V
Watts
Star t Peak Power DC
---
1 .9 2
---
Star t Peak Power AC
1 .1 1
2 .4 5
Idle
0 .8 3
0 .7 2
1 2 .7
Aver age
Idle Ripple
0 .2 5
0 .2 6
---
Peak to Peak
Random W / R Peak
2 0 6
1 .3 6
2 .2 6
2 KB Qd=4
Random W / R Aver age
2 0 6
0 .8 6
1 .0 7
1 7 .1
2 KB Qd=4
Random W / R Aver age
1 5 8
0 .8 4
1 .0 4
1 6 .6
2 KB Qd=1
1 2 0
0 .8 4
1 .0 1
9 0
0 .8 4
0 .9 9
6 0
0 .8 4
0 .9 8
3 0
0 .8 4
0 .9 7
Sequential Read Peak
1 .6 0
M axim um T r ansfer Rate
Sequential Read Aver age
1 .3 6
0 .7 4
1 5 .7
M axim um T r ansfer Rate
Sequential Wr ite Peak
1 .6 5
---
---
M axim um T r ansfer Rate
Sequential Wr ite Aver age
1 .3 7
0 .7 4
1 5 .7
M axim um T r ansfer Rate
BM S Aver age
0 .9 2
0 .7 4
1 3 .5
BM S Peak
1 .5 4
5V
12V
Spin up
Calibrate
Power on
12 V
2 Sec / Div
1A / Div
Peak DC
Peak AC
450 GB
2 A
1 A
0 A
0 A
1 A
5 V
2 Sec / Div
0.5A / Div
Spin up
Calibrate
Power on
12 V
2 Sec / Div
1A / Div
Peak DC
Peak AC
450 GB
2 A
1 A
0 A
0 A
1 A
5 V
2 Sec / Div
0.5A / Div