Datasheet

Test Procedure www.ti.com
In the GUI 12B CONTROL panel, click on the PASS FET button. In the STATUS panel, verify the 12B
PASS FET, BLK FET, and OUT>PG Threshold indicators turn GREEN. On the scope, verify a waveform
was obtained similar to that shown in Figure 8 . The total ramp time of the Channel 2 trace, from 0 volts to
about 11.8 V should be 1.3 ± 0.3 mS. Note that the extent of variance of the 12-V supply setting from a
nominal 12.0 V affects this timing result. The average amplitude of the current pulse (i.e., across the
flattest part of the peak) on Channel 4 should be 7.9 ± 0.8 A. A DVM can be used to verify the voltage at
TP10 (with respect to ground at TP12) is essentially the same as the input supply potential at 12VIN2.
Figure 8. Output Ramp-Up Waveforms — SLOTB_PWR Rail
14 SLUU318 – August 2008
TPS2359 Dual-Slot ATCA™ AdvancedMC™ Controller with I
2
C Evaluation Module
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