BQ79600 Questions

Hi Maor,

This looks like a duplicate of this thread: (+) BQ79600-Q1: BQ79600 Questions - Power management forum - Power management - TI E2E support forums. Which looks like we missed you there. I apologize for the lateness on our part. I will mark that thread as closed and point here. Do not reply to that thread. Only reply to this thread. 

Maor Matityahu said:

1. Which transformer you suggest to use for the communication?

For daisy chain communication, we recommended an inductance of 150-600uH. 

Some recommended part numbers are: HMU1228NL, HM2147NL and SM91502AL. 

Maor Matityahu said:

2. What is reverse wakeup?

Reverse wake up is a feature created for when the BQ79600 is in SHUTDOWN (lowest power state) but stack devices are in a state that allow them to communicate (such as sleep). When the stack devices transmit to the base (BQ79600-Q1 in this case), the device goes into VALIDATE mode and can drive the INH pin high when appropriate. 

You can find more information in the following sections: Section 7.3.4: INH / Reverse Wakeup , 7.3.3.2.2.3 Fault Transmitting (Automatic Host Wakeup/Reverse Wakeup) when BQ79600-Q1 in SHUTDOWN, 7.3.5 Sniff Detector

Maor Matityahu said:

3. To use reverse wakeup i need to supply 12V to BAT or i can use 5V to BAT and INH without 12V at all?

Our recommended operating conditions for the voltage at BAT has a minimum of 5.5V. 

Let me know if any clarifications are needed!

Best Regards,

Anthony Pham