Datasheet

N6731B-N6792A DC Power & Load Modules
N6700C-N6705C Mainframes
34 Specifications Guide
Supplemental Characteristics (continued)
N6761A / N6762A
N6763A / N6765A
N6764A / N6766A
Up-programming Settling Time with full resistive load:
(Time from start of voltage change to 0.1% of full scale value)
Small voltage step 0 V to 10 V 0 V to 6 V/0 V to 10 V 0 V to 15 V/0 V to 29 V
Time 0.9 ms 0.8 ms/1.0 ms 0.8 ms/1.4 ms
Large voltage step 0 V to 50 V 0 V to 20 V 0 V to 60 V
Time 4 ms 3 ms 4.2 ms
Down-programming Time with no load:
(time from start of voltage change to output voltage < 0.5 V)
Small voltage step 10 V to 0 V 6 V to 0 V/10 V to 0 V 15 V to 0 V/29 V to 0 V
Time 0.3 ms 0.55 ms/1.0 ms 0.6 ms/1.2 ms
Large voltage step 50 V to 0 V 20 V to 0 V 60 V to 0 V
Time 1.3 ms 1.8 ms 2.2 ms
Down-programming Settling Time with no load:
(time from start of voltage change to 0.1% of full scale value)
Small voltage step 10 V to 0 V 6 V to 0 V/10 V to 0 V 15 V to 0 V/29 V to 0 V
Time
0.45 ms
0.8 ms/1.3 ms
0.8 ms/1.5 ms
Large voltage step 50 V to 0 V 20 V to 0 V 60 V to 0 V
Time 1.4 ms 2 ms 2.3 ms
Down-programming Time with Capacitive load:
(time from start of voltage change to output voltage < 0.5 V)
Small voltage step 10 V to 0 V 6 V to 0 V/10 V to 0 V 15 V to 0 V/29 V to 0 V
Time 4.5 ms 2.2 ms/4.5 ms 2.3 ms/5.5 ms
Large voltage step
50 V to 0 V
20 V to 0 V
60 V to 0 V
Time 23 ms 8.5 ms 10 ms
Capacitive load
NOTE 4
1000 µF
4700 µF 680 µF
Down-programming Capability:
Continuous power 7 W 12.5 W 12.5 W
Peak current 3.8 A 15 A 6 A
Over-voltage Protection:
Accuracy 0.25% + 0.25 V 0.25% + 0.15 V 0.25% + 0.3 V
With Option 761 0.25% + 0.25 V 0.25% + 0.45 V 0.25% + 0.6 V
With Option 760 - 0.25% + 0.45 V 0.25% + 0.6 V
Maximum setting 55 V 22 V 66 V
Response time
50 µs from occurrence of over-voltage condition to start of output shutdown
Output Ripple and Noise:
(PARD)
CC rms: 2 mA 10 mA 4 mA
Common Mode Noise:
(from 20 Hz – 20 MHz; from either output to chassis)
rms
500 µA 500 µA 750 µA
peak-to-peak < 2 mA < 2 mA < 3 mA
Remote Sense Capability:
Outputs can maintain specifications with up to a 1-volt drop per load lead.
The load lead drop reduces the maximum available voltage at the load.
Series and Parallel Operation:
Identically rated outputs can be operated directly in parallel
or can be connected for straight series operation.
Minimum Output Turn-On Delay:
(Time from when any Output On command is received until the output starts turning on)
Without relay option
32 ms
NOTE 5
18 ms 18 ms
With relay Option 760
58 ms
NOTE 5
44 ms 44 ms
1
If you are operating the unit below 255 µA in constant current mode, the output may become unregulated with the
following load conditions: The load resistance is <175 mΩ
and the load inductance is >20 µH. If this occurs, an
UNRegulated flag will be generated and the output current may rise above the programmed value but will remain < 255 µA.
2
Correction On compensates for current flowing into the output capacitor during voltage transients
3
Stated values apply when the load resistance is at or close to zero. To determine the frequency for larger resistance values, refer to the
User’s Guide under “Measurement System Bandwidth”.
4
Modules can discharge the specified capacitive load from full scale to 0V at a rate of 4 times/second.
5
In Current priority mode, minimum delay is 23 ms without relays and 45 ms with relay Option 760.