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1.6 Start times
Power-on to Ready (sec) 3.5 typical, 7 max
Standby to Ready (sec) 2 typical, 3 max
Idle to Ready (sec) 0.4 max
1.7 Power specifications
The drive receives DC power (+5V) through pin 41 and pin 42 of the AT
interface connector.
1.7.1 Power consumption
Power requirements for the drive are listed in the table below. Typical power
measurements are based on an average of drives tested under nominal
conditions, using 5.0V input voltage at 40°C ambient temperature at sea
level. Active mode current and power are measured with a 32-msec delay
between each operation and the drive in default logical geometry. Seeking
power and currents are measured during one-third-stroke buffered seeks.
Read/write power and current are measured with the heads on track, based
on a 16-sector write followed by a 32-msec delay, then a 16-sector read
followed by a 32-msec delay. Spinup power is measured from time of
power-on to time of drive-ready for normal operation. The average peak
represents peak power that is drawn from the battery.
Mode
Watts
(at nominal voltage)
Amps
(at nominal voltage)
Typical
Max
Typical
Max
Spinup
Peak (see Figure 1)
Average
—
4.0
—
—0.8
1.3
—
Active
Read/Write
Seeking
2.5
2.5
2.6
2.6
0.5
0.5
0.52
0.52
Idle 1.2 1.3 0.24 0.26
Standby 0.3 0.36 0.06 0.072
Sleep 0.1 0.1 0.02 0.02
8 Marathon 2250 and Marathon 1680 Product Manual