©
National Instruments Corp.
21
NI 9478 Operating Instructions and Specifications
Overc
u
rrent protection threshold
selection per channel......................... Limit A, Limit B, or
No Limit
Overc
u
rrent sh
u
toff response time.... 1
μ
s
Overc
u
rrent refresh config
u
ration .... Enabled or Disabled
Overc
u
rrent refresh period................ 20–2550
μ
s in 10
μ
s
increments
Overc
u
rrent refresh period
acc
u
racy ............................................ ±7% max
Propagation delay ............................. 250 ns max
MTBF ............................................... 823,106 ho
u
rs at 25 °C;
Bellcore Iss
u
e 6, Method 1,
Case 3, Limited Part Stress
Method
Note
Contact NI for Bellcore MTBF specifications
at other temperat
u
res or for MIL-HDBK-217F
specifications.
