AnsweredAssumed Answered

ADN8831 output oscillating

Question asked by percy on Jan 19, 2018
Latest reply on Jan 23, 2018 by ytu

I am using the ADN8831 to drive a 5V, 1.5A TEC. I have a microcontroller that drives a DAC to set the VOUT2 voltage and a thermistor connected to an ADC to sample the temperature. I have implemented a digital proportional controller. I am finding that if I set the TEC voltage to a value under 1V then I start to get oscillations on the ADN8831 TEC outputs. If I keep the TEC voltage above 1V then it seems to be ok. Just wondering why this would occur? Thanks