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Output Voltage (VDC) Maximum Current
(A)
Regulation Band
1 3.3 50.0 3.23 to 3.43
2 5.0 40.0 4.95 to 5.15
3 12.0 5.0 11.40 to 12.60
4 -12.0 0.5 -12.60 to -11.40
5 5.1 1.0 4.95-5.25
Note - The combined power of output 1 and output 3 must be less than 320 watts.
C.1.15 Control Signals
With the exception of the PowerOn signal, all power supply control signals are at
TTL signal levels.
Parameter Minimum Maximum
VOH (high-level output voltage) 2.4 VDC
VOL (low-level output voltage) 0.4 VDC
VIH (high-level input voltage) 2.0 VDC
VIL (low-level input voltage) 0.8 VDC
C.1.15.1 Remote Enable PowerOn
A remote interface can enable the DC outputs with a low signal to the PowerOn input
and the DC outputs with a high signal to the PowerOn input. The signal is interfaced
to the power supply through the main logic board and the power distribution board.
C.1.15.2 System Unit Power Budget
The following subsections present the system unit power budgets.
Functional Description 275