IBM DTLA-307075 Hard Drive Specifications - Page 60

DC power requirements, 5.1 Input voltage, 5.2 Power supply current typical

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7.5 DC power requirements The following voltage specifications apply at the drive power connector. Damage to the drive electronics may result if the power supply cable is connected or disconnected while power is being applied to the drive (no hot plug/unplug is allowed). Connections to the drive should be made in a low voltage, isolated secondary circuit(SELV). There is no special power on/off sequencing required. 7.5.1 Input voltage Input voltage +5 Volts Supply +12 Volts Supply During run and spin up 5V ± 5% 12V +10% -8% Absolute max spike voltage1 7V 15V Figure 50. Input voltage Note: To avoid damage to the drive electronics power supply voltage spikes must not exceed specifications. 7.5.2 Power supply current (typical) DTLA-305010, -305020, -305030, -305040 Idle Average Idle ripple (peak-to-peak) Seek peak Seek average1 Start up (max) Random R/W peak Random R/W average2 Standby average Sleep average +5 Volts (amps RMS) 0.26 0.29 0.44 0.27 0.98 0.94 0.41 0.27 0.18 +12 Volts (amps RMS) 0.30 0.43 1.91 0.54 1.86 1.91 0.54 0.017 0.017 Except for a peak of less than 100usc duration 1 Randon seeks at 40% duty cycle 2 Seek duty = 30%, W/R duty = 45%, Idle Duty = 25% Figure 51. Power supply current (1 0f 2) Total (watts) 4.9 --7.9 --8.6 1.6 1.1 Deskstar 40GV & 75GXP hard disk drive specifications 48

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7.5 DC power requirements
The following voltage specifications apply at the drive power connector. Damage to the drive electronics
may result if the power supply cable is connected or disconnected while power is being applied to the
drive (no hot plug/unplug is allowed). Connections to the drive should be made in a low voltage, isolated
secondary circuit(SELV). There is no special power on/off sequencing required.
7.5.1 Input voltage
15V
12V +10% –8%
+12 Volts Supply
7V
5V ± 5%
+5 Volts Supply
Absolute max
spike voltage
1
During run and spin up
Input voltage
Figure 50. Input voltage
Note:
To avoid damage to the drive electronics power supply voltage spikes must not exceed specifi-
cations.
7.5.2 Power supply current (typical)
DTLA-305010, -305020, -305030, -305040
1.1
0.017
0.18
Sleep average
1.6
0.017
0.27
Standby average
8.6
0.54
0.41
Random R/W average
2
--
1.91
0.94
Random R/W peak
--
1.86
0.98
Start up (max)
7.9
0.54
0.27
Seek average
1
--
1.91
0.44
Seek peak
--
0.43
0.29
Idle ripple (peak-to-peak)
4.9
0.30
0.26
Idle Average
Total
(watts)
+12 Volts
(amps RMS)
+5 Volts
(amps RMS)
Except for a peak of less than 100usc duration
1
Randon seeks at 40% duty cycle
2
Seek duty = 30%, W/R duty = 45%, Idle Duty = 25%
Figure 51. Power supply current (1 0f 2)
Deskstar 40GV & 75GXP hard disk drive specifications
48