Hello Community,
we have problems with strongly fluctuating Voltagemeasurements.
For testing, we build the curcuit from the datasheetand, with 3 chained BQ76PL536-Q1 and SPI communication with the lowest, but are now confronted with several anomalies:
1. The internal 5V-LDO varies/fluctuates between 4V - 6V
2. A Measurement of VREF shows, that it varies/fluctuates between 2,4V - 2,6V
3. If we try to activate the manual-mode, the device stops working
4. In automatic-mode we get data from the device, but the measured values have an extreme fluctuation.
Each Cell have around 4V, with 6 cells per ASIC.
We don't know if we have done somethinge wrong in the Circuit or if the devices are just broken.
Do you have encountered any similar Problem in the past?
Greetings
Dennis