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Chapter 7 Power and Signal Distribution
Compaq iPAQ Family of Internet Devices
First Edition - March 2000
7-2
7.2.1 POWER SUPPLY ASSEMBLY
The power supply assembly is contained in a single unit that features a selectable input voltage:
90-132 VAC and 180-264 VAC. The system uses a 90-watt supply with specifications listed in
Table 7-1.
Table 7–1. 90-Watt Power Supply Assembly Specifications
Table 7-1.
90-Watt Power Supply Assembly Specifications (P/N 159447)
Range/
Tolerance
Min. Current
Loading [1]
Max.
Current
Surge
Current [2]
Max.
Ripple
Input Line Voltage:
110 VAC Setting
220 VAC Setting
90 - 132 VAC
180-264 VAC
--
--
--
--
--
--
--
--
Line Frequency 47 - 63 Hz -- -- -- --
Steady State Input (VAC) Current -- -- 3.0 A -- --
+3.3 VDC Output +/- 5% 0.50 A 6.00 A 6.00 A 50 mV
+5 VDC Output +/- 5 % 0.70 A 10.0 A 12.0 A 50 mV
+5 AUX Output +/- 4 % 0.00 A 2.50 A 2.50 A 50 mV
+12 VDC Output +/- 5 % 0.05 A 1.50 A 3.50 A 120 mV
-12 VDC Output +/- 10 % 0.00 A 0.30 A 0.30 A 200 mV
NOTES:
[1] Minimum loading requirements must be met at all times to ensure normal operation
and specification compliance.
[2] Surge duration no longer than 10 seconds and +12 tolerance +/- 10%.
The power supply assembly features power line surge protection, withstanding brief surges of up
to 2000 VAC without damage.