Datasheet

I
PEAK
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Test Procedure
Set the scope to trigger on Channel 2. In the GUI 3.3B CONTROL panel, click on the PASS/BLK FET
button. In the STATUS panel, verify the 3.3B PASS/BLK FET and VOUT GOOD indicator colors change to
GREEN. On the scope screen, verify a waveform was obtained similar to that shown in Figure 7 . The
Channel 2 and 4 waveform parameters should be similar to those indicated above for Figure 6 . A DVM
can be used to verify the output voltage at TP11 (with respect to ground at TP12) is within 10 mV of the
3.3-V input supply setting.
Figure 7. Output Ramp-Up Waveforms SLOTB_MP Rail
Move the Channel 1 scope probe to TP7, and the Channel 2 probe to TP10. Change the Channel 1 and 2
amplifier scale settings to 5 V/div. Remove the current probe from the 3.3 V supply lead, and clamp it
across the 12VIN2 supply lead. Change the Channel 4 amplifier to 2 A/div. Adjust the scope trigger
threshold to about 3 volts.
SLUU318 August 2008 13
TPS2359 Dual-Slot ATCA™ AdvancedMC™ Controller with I
2
C Evaluation Module
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