Does anybody here have experience with this chip: http://www.ti.com/lit/ds/symlink/tps54618.pdf , page 1?
This circuit is inside a tablet and is extremely sensitive to cold. I figured out that , if I touch the VSENSE input via a 10MΩ (!) resistor it shows the same behaviour as when the circuit is cooled down. I didn't measure the output voltage yet but the effect is that the display freezes, so something happens to the output voltage at this moment. A reset solves the problem.
Is this circuit supposed to be that sensitive?
I didn't do any measurements yet, component density is very high and I wanted to ask first if someone experienced similar issues.
This circuit is inside a tablet and is extremely sensitive to cold. I figured out that , if I touch the VSENSE input via a 10MΩ (!) resistor it shows the same behaviour as when the circuit is cooled down. I didn't measure the output voltage yet but the effect is that the display freezes, so something happens to the output voltage at this moment. A reset solves the problem.
Is this circuit supposed to be that sensitive?
I didn't do any measurements yet, component density is very high and I wanted to ask first if someone experienced similar issues.