Appendix A
Specifications
PXI-1000 User Manual
A-2
©
National Instruments Corporation
Table A-2.
DC Output Specifications
Characteristic
Description
Maximum Usable Power
300 W
DC Current Capacity (I
MP
)
Voltage
I
MP
(Steady-State Current)
+3.3 V
40 A
+12 V
4 A
+5 V
20 A
–12 V
1 A
Load Regulation
1% for 10% to 100% load changes,
all outputs
10% min. load required on V1 (+3.3 V)
for max. load regulation on outputs
V2 (+5 V), V3 (+12 V), and V4 (–12 V).
Maximum Ripple and
Noise
1% ripple, 1% noise, or 100 mV,
whichever is greater
20 MHz bandwidth
Over-Current Protection
All outputs protected from short circuit
and overload, automatic recovery
Over-Voltage Protection
3.3 V clamps at 20% to 30% above output
voltage
5 V, +12 V, and –12 V clamps at 10% to
20% above output voltage
Power Supply Unit MTBF
90,000+ hr
Power Supply/Fan Unit
MTTR
Replacement in under 5 minutes