Other Parts Discussed in Thread: BQ76PL536A-Q1
Hello,
I am using BQ76PL536-Q1 in my project. I was successfully started communication with it. However after few minutes BQ76PL536-Q1 stopped responding. After restart or voltage removal from IC, I was again able to communicate with it, then again, it stopped, seemingly completely randomly. I then started measuring regulator output voltage and found some strange patterns. When it communicates with controller LDOD voltage is 4,7,REG50 is 5 V, VREF is 2,5V. But when its its not working then LDOD is 2,3, REG50 is somewhere between 1V and 3V, VREF is from 0.5V to 1.4V.
I am using STM32 microcontroller to communicate with BQ76PL536-Q1, but STM32 communication voltage is 3.3V. Could that be the cause of the problem?