Category: Hardware
Product Number: ADN8835
Hello,
I'm using the ADN8835 in a software controlled PID loop.
Using the ADN8835 in open loop, i.e by applying a fixed voltage on IN2P, the controller limit the output voltage under the limitation defined with the resistor set on VLIM pin.
The resistors are Vtop: 27k Vbot: 10k.
Normally, the limit should be 1.351V in cooling mode and 1.205V in heating mode.
I measured 1.31V in cooling mode (which seems normal) but 1.03V to 1.05V (depending on the voltage on IN2P) in heating mode.
What could explain this difference?
Best regards,
Vincent