Part Number: BQ34Z651 Other Parts Discussed in Thread: BQEVSW Hi There,
I have a battery system that used a number of different cell chemistries which therefore carry different IDs.
I am using a bespoke program to manage the different configurations through…
Part Number: BQ34Z651 Hi! The BQ34Z651 has two different minimum operating voltages: a supply voltage for VCC and BAT of 4.5V, and a startup voltage of 5.5V for VCC, BAT, and PACK. What is the hysteresis around the startup voltage, and how are the internal…
Part Number: BQ34Z651 Other Parts Discussed in Thread: BQSTUDIO , GPCCHEM , BQEVSW Hi There,
I am attempting to run learning cycles on two packs at the moment. One of these succeeds consistently so I have a good idea of what a successful learning cycle should…
Part Number: BQ34Z651 (A quick, albeit belated, THANK YOU to Batt--the problem(s) behind my original questions to you were identified, as well as fixes for them.) Is there a soft-start for the CHG and DSG gate drive outputs that can be configured with…
Part Number: BQ34Z651 Hi There,
I have a circumstance where charging is inhibited (as indicated by the XCHG flag in ChargingStatus [0x8000]). This is supported by the fact that current is dropping to 0 which indicates that both the CHG and ZVCHG FETs…
Part Number: BQ34Z651 Hi There,
I was just wondering what voltage the gas gauge used for converting from mAh to mWh, is it the current voltage, the design voltage, or something else?
Thanks,
David
Part Number: BQ34Z651 Other Parts Discussed in Thread: BQ40Z50 Hi There,
I have been having issues recently with discharge FETs failing in my battery packs, leading to free discharge of the pack. This causes many protection issues, especially the lack…
Part Number: BQ34Z651 Hi There,
I have noticed today that the voltage of my 2S battery pack affects whether or not I can clear a Permanent Failure.
I am using the PFIN input pin to trigger Permanent Failures on demand and that works beautifully, and when…
Part Number: BQ34Z651 Other Parts Discussed in Thread: BQ20Z65-R1 Hi There,
I am trying (and failing) to run a learning cycle on the BQ34Z651. I inquired about this a number of months ago and was pointed to SLUA597 as a reference.
While this document seems…