HP C2246 Technical Reference Manual page 18

DC Power Characteristics
All values assume input voltages are within limits specified under Input Power Requirements
in Table 1-4.
Table 1-3. HP C2244/45/46/47 DC Power Characteristics
Start-Up
Running Seeking
Typ/Max Typ/Max
Typ/Max
(Note 1)
(Note 2)
+s
V de Current
Narrow, Single-Ended 0.93 A / l.03 A 0.93 A / l.03 A
0.93 A / 1.03 A
Narrow, Differential (Idle) 1.3 A
I
1.44 A 1.3 A/ 1.44 A 1.3 A
I
1.44 A
Narrow, Differential (Active)Note
3 1.8 A/ l.94 A 1.8 A/ 1.94 A 1.8 A/ 1.94 A
Wide, Differential (Idle) 1.4 A/ 1.55 A 1.4 A/ 1.55 A 1.4 A/ 1.55 A
Wide, Differential (Active)Note
3 2.4 A
I
2.55 A 2.4 A/ 2.55 A 2.4
A
I
2.55 A
+12
Vdc
(ave)
Current Note
4
All 0.54 A
I
0.57 A 0.82 A
I
0.85 A
+12 Vdc
(peak)
Current
Noh!$ 4,
~
All
2.45 A/ 2,50 A
1.20 A
I
1.50 A
Power
Narrow, Single-Ended 34.1
w
I
36.9
w
11.1
w /
12.6
w
14.4
w /
16.1
w
Narrow, Differential
35.9
w /
39.1
w
13.0
w /
14.7
w
16.3
w /
18.8
w
Wide, Differential
36.4
w /
39.6
w
13.s
w /
15.3
w
1s.s
w /
1s.s
w
Notes:
1. Spindle up to speed and actuator is track following.
2. Assuming random seeks with an average latency between seeks.
3. Differential tranceivers transmitting and receiving.
4. Typical +12 Vdc currents are for sustained drive operation at 25° ambient temperature. Maximum +12 Vdc
currents (running and seeking) are for initial drive tum-on at 0° C ambient temperature.
5. Peak values shown are for occurrences greater than 5 milliseconds duration.
I
START UP
SELF TEST/ SEEKING
Typical + 12V Current
1-8 Product Specifications
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