Hi Kai,
Please confirm if you are using TPS3700 as you indicate in text or TPS3701 as your schematic indicates. For this answer I am making the following assumptions:
1) R6 is not populated as indicated (DNP)
2) R5 is not populated as indicated by the black x
3) U1 is TPS3701 so that I can refer to the schematic using the pin names
TP1 is the test point for OUTA. OUTA is the undervoltage output for INA+. If INA+ is above the threshold, OUTA will be pulled up through R4. If INA+ is below the threshold, it will be pulled down internally to GND.
TP2 is the test point for OUTB. OUTB is the overvoltage output for INB-. As both R6 and R5 are not populated, OUTB will not be pulled up and will always remain logic low regardless of the voltage level on INB-.
Very Respectfully,
Ryan
Hi Kai,
The Timing Diagram that you copied is for an application where INA+ and INB- are monitoring a single rail and OUTA and OUTB are tied shorted.
In your application schematic you do not show the inputs INA+ and INB-. For this answer I will make the assumption that your inputs are connected as shown in the figure above so that the outputs will correlate to the timing diagram you show.
On the output side you show R6 as not populated. As such OUTA and OUTB are not shorted together. TP1 will show the waveform in your timing diagram labeled OUTA and TP2 will show the waveform labeled OUTB.
If you would like the waveform that you drew, you will need to populate R6. If you choose to populate R6, R5 is no longer required.
Very Respectfully,
Ryan
