Power; Power Sequencing; Power Reset Limits; Table 4-4 Power Reset Limits1 - Maxtor Atlas 10K V Product Manual

4.5

POWER

The Maxtor Atlas 10K V hard disk drive operates from two supply voltages:
+12 V
+5 V
+12 V
+5 V
4.5.1

Power Sequencing

You may apply the power in any order or manner, or open either the power or
power return line with no loss of data or damage to the disk drive. However,
data may be lost in the sector being written at the time of power loss. The drive
can withstand transient voltages of +10% to –10% from nominal while powering
up or down.
4.5.2

Power Reset Limits

When powering up, the drive remains reset (inactive) until both rising Voltage
thresholds reset limits are exceeded for 100 ms. When powering down, the drive
resets immediately when either supply voltage drops below the falling voltage
threshold.
DC VOLTAGE
8. At power on start up error algorithms are used and may extend the time to
Drive Ready to as long as 30 seconds.
MAXTOR ATLAS 10K IV 73.5/147.1/300 GB
+/-10% @ Spin up, +/- 5% While running
Allowable ripple and noise for each voltage:
Table 4-4
Power Reset Limits
+5 V
+12 V
+/- 5%
800 mV p-p (100 Hz to 8 KHz)
450 mV p-p (8 KHz to 20 KHz)
250 mVp-p (20KHz - 20MHz)
250 mV p-p (100 Hz to 20MHz)
1
THRESHOLD
4.31/4.43v
9.59/9.77v
Maxtor Atlas 10K V 4-5