Hitachi HDT725025VLA380 Specifications - Page 67
Power supply generated ripple at drive power connector
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Power supply current of 400 / 500 GB SATA models (values in milliamps. RMS) Idle average Idle ripple (peak-to-peak) Low RPM idle Low RPM idle ripple Unload idle average Unload idle ripple Random R/W average1 Random R/W peak Silent R/W average Silent R/W peak Start up (max) Standby average Sleep average +5 Volts [mA] Pop Mean 500 450 340 200 340 200 730 1800 730 1800 1250 340 300 Std Dev 4 10 4 10 4 10 10 30 10 30 30 4 4 +12 Volts [mA] Pop Mean 380 400 140 400 340 300 640 1700 440 1000 2000 12 12 Std Dev 4 10 4 10 4 10 20 30 10 30 30 2 2 Total [W] 7.0 3.4 5.8 11.3 8.9 1.8 1.6 Power supply current of 250 / 300 / 320 GB SATA models (values in milliamps. RMS) Idle average Idle ripple (peak-to-peak) Low RPM Idle Low RPM Idle Ripple Unload Idle average Unload Idle Ripple Random R/W average1 Random R/W peak Silent R/W average Silent R/W peak Start up (max) Standby average Sleep average +5 Volts [mA] Pop Mean 500 450 340 200 340 200 730 1800 730 1800 1250 340 300 Std Dev 4 10 4 10 4 10 10 30 10 30 30 4 4 +12 Volts [mA] Pop Mean 300 400 130 400 260 300 560 1700 360 1000 2000 12 12 Std Dev 4 10 4 10 4 10 20 30 10 30 30 2 2 Total [W] 6.0 3.3 4.8 10.4 8.0 1.8 1.6 7.3.3 Power supply generated ripple at drive power connector Table 41: Power supply generated ripple at drive power connector +5 V dc +12 V dc Maximum (mV pp) 100 150 MHz 0-10 0-10 Deskstar T7K500 Hard Disk Drive Specification 53