NCP102 Demonstration Board Test Procedure
6.
Adjust the Vcc supply to 5.0VDC while observing DMM 1
(not the indicator on the DC supply).
7.
Adjust the Vin supply to 1.800VDC while observing DMM 2
(not the indicator on the DC supply).
8.
Disable the electronic load so that it is neither sinking nor
sourcing current.
No-Load Regulation and Enable Function
1.
Verify that Vout (DMM 3) equals zero VDC.
2.
Temporarily disconnect the banana cable connected to
“N_Enable”, or reduce the “N_Enable” supply to zero Volts.
3.
Verify that Vin (DMM 2) equals 1.800VDC, +/- 2%
(1.764VDC to 1.836VDC).
4.
Readjust the Vin supply if necessary.
5.
Verify that Vout (DMM 3) equals 1.200VDC, +/- 2%
(1.176VDC to 1.224VDC).
6.
Reconnect the banana cable to “N_Enable”, or adjust the
“N_Enable” supply output to 4.5VDC.
7.
If Vcc= 12.0VDC (DMM 1), go to
Full-Load Regulation and
Enable Function
, below.
8.
Adjust the Vcc supply to 12.0VDC, as indicated on DMM 1.
9.
Repeat steps 1 through 7 of this section.
Full-Load Regulation and Enable Function
1.
While observing the front panel indicator on the electronic
load, adjust it to sink 3.5ADC from the demonstration board
Vout terminal.
2.
Enable the electronic load.
3.
Verify that Vout (DMM 3) equals zero VDC.
4.
Temporarily disconnect the banana cable connected to
“N_Enable”, or reduce the “N_Enable” supply to zero Volts.
5.
Verify that Vin (DMM 2) equals 1.800VDC, +/- 2%
(1.764VDC to 1.836VDC).
6.
Readjust the Vin supply if necessary.
7.
Verify that Vout (DMM 3) equals 1.200VDC, +/- 2%
(1.176VDC to 1.224VDC).
8.
Reconnect the banana cable to “N_Enable”, or adjust the
“N_Enable” supply output to 4.5VDC.
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