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CHAPTER 3: Electrical Specifications
Table 3-1. Current and Power Specifications
5 V Current (A)
MaxPk
Mode
Standby / Idle
3.2
Media Loading
3.8
/ Unloading
220/320 Write–
6.1
8
Motor Start
220/320 Write–
6.3
Streaming
Max for SDLT
9
Modes
BRC Read–
3.9
8
Motor Start
BRC Read–
5.2
Streaming
Max for BRC
9
Modes
1. The Max-Peak value represents short current spikes drawn for durations of < 50us. On the 12V supply, the peaks
correspond to the pulse width modulated switching of the motors. These values are calculated from the average of
Peak-ripple-current + 2 sigma, measured at +5% DC voltage.
2. The Max-Rms value is the average of the maximum RMS current drawn during this operating mode. These values
are calculated from the average of RMS current + 3 sigma, measured at nominal DC voltage.
3. The typical current is calculated from the average of all RMS current drawn during this operating mode, measured
at nominal DC voltage.
4. The Max DC power is calculated from the typical DC power + 3 sigma, measured at nominal DC voltage. This
value takes into account that the peak currents on the 5V and 12V do not occur at the same time.
5. The Typical DC power is calculated from the average RMS DC power drawn during this operating mode,
measured at nominal DC voltage. This value also takes into account that the peak currents on the 5V and 12V do
not occur at the same time.
6. The Max AC power is calculated from the typical AC power in tabletop drives + 3 sigma.
7. The Typical AC power is calculated from the average of AC power drawn in tabletop drives.
8. The motor start modes draw the most current from the 12V supply, so they are shown separately. These events last
< 1 second and occur at a duty cycle of less than 25%.
9. The Max values for each mode are based on the Max-rms values, since the peak values are of very short duration.
12 V Current (A)
1
MaxPk
2
MaxRms
3
Typ
3.0
2.9
0.6
3.1
2.9
4.8
3.1
3.0
4.8
4.3
3.8
2.1
4.3
3.0
2.8
2.3
3.3
3.1
1.8
3.3
1
DC Power (W)
2
4
MaxRms
Max
3
Typ
0.5
0.4
20
1.0
0.7
25
1.0
0.7
25
0.7
0.7
28
1.0
28
0.7
0.6
23
0.7
0.6
24
0.7
24
AC Power (W)
6
Max
5
7
Typ
Typ
19
34
29
24
38
33
24
33
30
27
42
38
42
22
38
32
22
41
33
41
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