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PMM Discovery 2
TPS2384
SLUS634D – NOVEMBER 2004 – REVISED MARCH 2007
POWER MANAGEMENT MODE FUNCTIONAL DESCRIPTION (continued)
PMM Discovery 2 function waveforms for the N and CINT pins are shown in Figure 11 . Again the measurement
is being performed using 25 k Ω impedance between the P and N pin. The Discovery 2 function was called after
a Discovery 1 function so the voltage ramps from 4.4 V to 8.8 V below the P pin. The Discovery 2 voltage is
given 5 ms to settle before the A/D begins to integrate. At the end of the A/D cycle the Discovery 2 current is
stored in the Port Discovery Current Register and the function done bit is set. The applied Discovery 2 voltage
level remains until a new function is called. The data for this measurement remains stored in the Discovery
Current Register until another Discovery 1 or 2 function is called.
Figure 11.
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