Other Parts Discussed in Thread: , TIDA-01546
Hello. Have a few questions re: BQ35100 and BQ35100EVM-795 eval board. In the BQ35100’s datasheet p10, it says “In systems where the battery voltage is greater than VIN(BAT) MAX (for example, 2-series cell or more), then an
external voltage scaling circuit is required”. The BQ35100EVM-795 eval guide figure 13 schematic shows Voltage: 0 to 20V near J6. With the various jumpers set to scale per the battery qty, I’m not sure how this eval board circuit prevents the higher voltage (say 5-20V) from REGIN and ultimately pin6 REGIN? With the J2 jumper for 2-4S is jumping pins J2-5 & J2-6, it routes this 5-20V ultimately through Q1 to REGIN.
Which schematic is the correct one for the eval board SLUUBH7 Eval guide July 2016) or the TIDA-01546 schematic?
Under paragraph 3.2.1, it says this twice for 2 sections: ”For packs where the stack voltage is less than 5 V:”. Shouldn’t the second mention of this be for more than 5V?
Seems there are some critical inconsistencies between documentation.
Also, question re: working with both the BQ35100 & LM74610 ideal diode controller. I have a wireless sensor node application that may be using both the BQ35100 battery sensor and the LM74610 ideal diode controller. Can you please advise any recommendations in order to use these together? Ideally, the LM74610 diode OR controller would provide reverse polarity protection for the BQ35100 and the rest of the circuit but I didn’t want the LM74610 to influence/impact the BQ35100 battery monitoring integrity.
Thanks,
