Hi E2E,
We had a problem with the IC's temperature detection function.
In the design, we connected the TS1 to an external thermistor to detect the temperature, and the VC5x connected a fixed 10kΩ to the TS2.
1, if TEMP_SEL=0, TS1 will not be able to detect the external temperature, but VC5 (PIN22) voltage is stable;
2. If TEMP_SEL=1, TS1 can detect the external temperature, but the VC5 (PIN22) voltage will periodically drop abnormally.
Why does this abnormal voltage waveform appear? How should we modify it?
