5K320 SATA OEM Specification
27
6.2
DC power requirements
Connection to the product should be made in a safety extra low voltage (SELV) circuits. The voltage
specifications are applied at the power connector of the drive.
Item
Requirements
Nominal supply
+5 Volt dc
Supply voltage
–0 .3 Volt to 6.0 Volt
Power supply ripple (0–20
MHz)
1
100 mV p -p max.
Tolerance
2
±5%
Supply rise time
1–100 ms
Watts (RMS Typical)
7
Performance Idle average
3
1.7
Active Idle average
0.8
Low Power Idle average
0.55
Read average
4
1.8
Write average
1.8
Seek average
5
2.2
Standby
0.2
Sleep
0.1
Startup (maximum peak)
6
5.0
Average from power on to
ready
3.8
Table 14. DC Power requirements
Footnotes:
1.
The maximum fixed disk ripple is measured at the 5 volt input of th e drive.
2.
The disk drive shall not incur damage for an over voltage condition of +25% (maximum
duration of 20
ms) on the 5 volt nominal supply.
3.
The idle current is specified at an inner track.
4.
The read/write current is specified based on three operations of 63 sector read/write per
100 ms.
5.
The seek average current is specified based on three operations per 100 ms.
6.
The worst case operating current includes motor surge.
7.
“Typical” mean a verage of the drive population tested at nominal environmental and
voltage conditions.
