Part Number: BQ7718 Other Parts Discussed in Thread: TIDA-00108 , Hi,
I saw TIDA-00108 using 3 pcs BQ7718 for stack.
My question is "tiduck7.pdf" table 2, it decribe for calculate Vgs.
Why it use 20V/20V/45V?
the Buttom device each cell 4.2V…
Hi Beginner,
Thank you for your patience. It'll be good if you can do a diagram of what you are trying to achieve.
For my understanding, you want to stack BQ77216 to a higher voltage (54s). You have 3x sets of BQ79718-Q1, and you want to split the…
Hello Jack,
We do not have a reference design for a stacked BQ77216, however, they can look at similar protections like the BQ7718, which has a reference design ( TIDA-00108 ). They can also look at the BQ76952 EVM, which has an example of the BQ7718…
Hi Henry,
This reference design using the BQ7718 may be helpful for you:
https://www.ti.com/tool/TIDA-00108
The BQ7718 connects to the battery cells as shown in the reference design. Most battery packs use the same PACK+ and PACK- pins for the load…
Hi Mike,
For the active high CMOS output versions, see the technique in TIDA-00108. If you are using an open drain version of the device you would need a different circuit. I don't know of a circuit reference for the open drain option, it is likely more…
Hello David,
1. What's the priority of protective actions for BQ76930 and BQ78350? For some protections, the BQ76930 may activate the protections first. But the BQ78350 is needed to recover from any/all protections that were triggered.
2. How do you…
Hi Paul,
It would be a thermally controlled fuse. You might see an example at the TIDA-00108 or the bq40z50EVM. A drive or activation circuit is needed for such a fuse.
If the fault is enabed for the SAFE output and conditions are met it will activate…
Hi Daniel,
The bq76940 does not provide a method to disable its automatic protections. The bq78350-R1 will allow it to be ignored as a secondary protecton but the DSG will still be driven low, the gauge will attempt to reset it. If you were using your…
Part Number: BQ7718 Other Parts Discussed in Thread: BQ77915 Dears :
Do you have BQ7718 EVM ?
We want to verify bq77915+bq7718x (10s) solution.
tiduck7.pdf
