Dc Power Requirements; Table 28 Input Voltage; Table 29 Power Supply Current Of 2 Disk Pata Models - Hitachi CinemaStar P7K500 Specifications

5.5

DC power requirements

Damage to the drive electronics may result if the power supply cable is connected or disconnected to the
legacy power connector while power is being applied to the drive (no hot plug/unplug is allowed). If SATA
power supply cable is connected or disconnected to the SATA power connector, hot plug/unplug is allowed.
5.5.1 Input voltage
Input voltage
+5 Volts Supply
+12 Volts Supply

Table 28 Input voltage

Caution : To avoid damage to the drive electronics, power supply voltage spikes must not exceed
specifications.
5.5.2 Power supply current (typical)
Power supply current of
2 Disk PATA models
(values in milliamps. RMS)
I dle average
T T
I dle ripple (peak-to-peak)
T T
Low RPM Idle
Low RPM Idle Ripple
Unload Idle average
Unload Idle Ripple
1
Random R/W average
P
P
Random R/W peak
S tart up (max)
T T
S tandby average
T T
S leep average
T T

Table 29 Power supply current of 2 Disk PATA models

Except for a peak of less than 100
1
Random R/W : 40 IOPS / 16 Blocks Random Write and Random Read
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
During run and spin up
5V ± 5%
12V ±10%
+ 5 Volts [mA]
T T
P op Mean Std Dev
T T
130
200
80
100
80
100
240
700
400
75
65
μ
s duration.
P
43
Absolute max
spike voltage
–0.3 to 5.5V
–0.3 to 15.0V
+ 12 Volts [mA]
T T
P op Mean Std Dev
T T
10 320
10 300
10 130
10 250
10 280
10 300
10 560
20 1500
20 2000
10 5
10 5
Supply rise time
0 to 5sec
0 to 5sec
T otal
T T
[ W]
T T
15
4.5
20
15
2.0
20
15
3.8
20
15
7.9
40
50
5 0.5
5 0.5