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Physical and Safety Specifications
Power Requirements
Power Requirements
The power requirements are as follows:
+5V: ±5%, Ripple <150 mV peak-peak (<100 mV peak-peak for the HP C1533A
and HP C1553A)
n +12V: ±10% (±5% for drives other than the HP C1537A when programming
EEPROM), Ripple <150 mV peak-peak
n
On powering up, both supplies should come up within 1 second of each other.
On powering down, the 12V supply should be maintained within ±10% limit until
the 5V supply drops below 4.5V.
The specified ratings are as follows:
+5V supply +12V supply Power
HP C1534/36A
HP C1533A
Typical Operation
0.6A
0.12A
< 5W
Worst Case Peaks (<1s)
0.8A
0.4A
8.8W
< 1.2A
< 0.2A
7.5W
Typical Operation
HP C1537A
Worst Case Peaks (<1s)
1.2A
0.8A
15.6W
Typical Operation
0.95A
< 0.06A
5.7W
Worst Case Peaks (<2s)
095A
0.51A
10.2W
<0.65A
0.03A
3.8W
HP C1539A
Typical Operation
Worst Case Peaks (<1s)
1.0A
0.3A
6.1W
HP C5683A
Typical Operation
0.5A
0.4A
7.3W
Worst Case Peaks (<1s)
0.85A
1.2A
20.3W
HP C1557A
(embedded drive)
Typical Operation
<1.2A
0.25A
9W
Worst Case Peaks (<1s)
1.2A
0.8A
15.6W
HP C5713A
(embedded drive)
Typical Operation
0.5A
0.4A
7.3W
Worst Case Peaks (<1s)
0.85A
1.2A
20.3W
For the HP C1553A, the ratings for the embedded drive are the same as for the
HP C1533A above.
The ratings for the changer mechanism in the autoloaders are as follows:
Changer
Mechanism
+5V supply
+12V supply
Power
Typical Operation
<0.75A
<0.25A
6.8W
Worst Case Peaks (<1s)
0.75A
2.0A
28W
Measured values of current for typical units are as follows:
HP C1534A/36A HP C1533A HP C1537A HP C1539A HP C5683A
5V
12V
5V
12V
Idle
0.6A
10 mA
1.1A
0.1A
Reading/Writing
0.6A
0.12A
1.16A 0.12A 0.85A 0.06A 0.65A 0.03A 0.5A
Load/Unload (peak, <0.5s)
0.7A
0.32A
1.12A 0.6A 0.66A 0.51A 0.48A 0.06A 0.36A 1.07A
Fast Forward/Reverse
0.6A
0.25A
1.1A
Edition 8—December 1999
5V
12V
5V
12V
5V
12V
0.6A 0.05A 0.47A 0.02A 0.18A 0.19A
0.4A
0.4A 0.74A 0.21A 0.64A 0.03A 0.85A 1.2A
8-5