Dc Power Requirements - Hitachi 2.5 inch SATA Travelstar HTS543232L9A300 Oem Specification

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
Nominal supply
Supply voltage
Power supply ripple (0–20
1
MHz)
2
Tolerance
Supply rise time
Watts (RMS Typical)
Performance Idle average
Active Idle average
Low Power Idle average
4
Read average
Write average
5
Seek average
Standby
Sleep
Startup (maximum peak)
Average from power on to
ready
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 average of the drive population tested at nominal environmental and
voltage conditions.
7
3
6
5K320 SATA OEM Specification
Requirements
+5 Volt dc
–0 .3 Volt to 6.0 Volt
100 mV p -p max.
±5%
1–100 ms
1.7
0.8
0.55
1.8
1.8
2.2
0.2
0.1
5.0
3.8
27