Dc Power Requirements; Figure 18. Dc Power Requirements - IBM DJSA-210 - Travelstar 10 GB Hard Drive Specifications

6.2 DC power requirements

Connection to the product should be made in isolated secondary circuits (SELV). The voltage specifica-
tions are applied at the power connector of the drive.
Item
Nominal Supply
Power Supply Ripple (0–20 MHz)
Tolerance
Supply rise time
Supply Current (+5.00 V dc case)
Watts (RMS Typical)
Performance Idle average
Active Idle average
Low Power Idle average
Read average
Write average
Seek average
Standby
Sleep
Startup (maximum peak)
Average from power on to ready
Notes:
*1. The maximum fixed disk ripple is measured at the 5 volt input of the HDD.
*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.

Figure 18. DC Power requirements

DJSA-232
Travelstar 32GH/30GT/20GN hard disk drive specifications
Requirements
+5 Volt dc
100 mV p-p max.
±5%
7–100 ms
Population Mean
(nominal condition)
DJSA-230
2.0 1.85
1.3 0.95
0.9 0.65
2.5 2.1
2.7 2.2
2.6 2.3
0.25 0.25
0.1 0.1
5.0 4.7
3.8 3.3
25
Notes
*1
*2
DJSA-
Notes
220/210/205
1.85 *3
0.85
0.65
2.0 *4
2.1
2.3 *5
0.25
0.1
4.7 *6
3.3