Hitachi HTS541680J9AT00 Specifications - Page 26

DC power requirements - 0 80gb

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Travelstar 5K160 (PATA) Hard Disk Drive 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 MHz)1 Tolerance 2 Supply rise time Requirements +5 Volt dc -0.3 Volt to 6.0 Volt 100 mV p-p max. ±5% 1-100 ms Operational Mode Performance Idle average 3 Watts (RMS Typical) 7 2.0 Active Idle average 0.8 Low Power Idle average 0.6 Read average 4 1.8 Write average 1.8 Seek average 5 2.0 Standby 0.2 Sleep 0.1 Startup (maximum peak) 6 5.0 Average from power on to ready 3.0 Footnotes: 1. The maximum fixed disk ripple is measured at the 5 volt input of the 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. Table 13. DC Power requirements 6.2.1 Power consumption efficiency Capacity 160GB 120GB 80GB 60GB 40 GB Power Consumption Efficiency 0.0038 (Watts/GB) Table 14. Power consumption efficiency 0.0050 0.0075 0.0100 0.0150 Note: Power consumption efficiency is calculated as Power Consumption of Low Power Idle Watt/ Capacity (GB). 26/188

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Travelstar 5K160 (PATA) Hard Disk Drive Specification
26
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188
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
Operational Mode
Watts (RMS Typical)
7
Performance Idle average
3
2.0
Active Idle average
0.8
Low Power Idle average
0.6
Read average
4
1.8
Write average
1.8
Seek average
5
2.0
Standby
0.2
Sleep
0.1
Startup (maximum peak)
6
5.0
Average from power on to ready
3.0
Footnotes:
1.
The maximum fixed disk ripple is measured at the 5 volt input of the 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.
Table 13. DC Power requirements
6.2.1
Power consumption efficiency
Capacity
160GB
120GB
80GB
60GB
40 GB
Power Consumption Efficiency
(Watts/GB)
0.0038
0.0050
0.0075
0.0100
0.0150
Table 14. Power consumption efficiency
Note:
Power consumption efficiency is calculated as Power Consumption of Low Power Idle Watt/
Capacity (GB).