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Part Number: BQ77904 Hi Expert,
If bq77904 got the UV and the charger's battery detection waveform as the below picture, does it any risk to unlock bq77904? Thanks!
Part Number: BQ77904 Other Parts Discussed in Thread: BQ77905 Team,
My customer needs help understanding how to properly configure bq77904 for a 3S system. (datasheet talks about 5S or larger assemblies).
My current questions are on sizing the Rsns resistor…
Part Number: BQ77904 Other Parts Discussed in Thread: BQ77905 Hello!
I need chip of battery protection for 3 cell (OV and UV be sure). Chip must protact battery, when Voltage increased highter 4.3 +-0.05 and return, when voltage falls below 4.25-4.2. …
Part Number: BQ77904 Hi Sir/Madam:
There was a problem in my design when I used BQ7790400PWR,When undervoltage protection and overcurrent protection start, it can not be recovered by Load Removal.The following is my circuit diagram, please help me to…
Part Number: BQ77904 Hi,
considering typical application (figure 27) in the datasheet...I need common ground in the entire circuit, thus I can't use N-FETs. My charger circuit has a shutdown pin (log 0 = shutdown), so my idea is:
charger circuit…
Part Number: BQ77904 We are performing verification testing on a board using the bq77904 and are failing the undervoltage threshold test. The datasheet specifies that the default UV threshold is 2.8V and we are consistently measuring ~2.2V. We have tested…
Hello,
If you would like to adjust the temperature at which protections are triggered, you can select a different NTC thermistor which will produce different resistances corresponding to temperature than the default 103AT NTC that is 10kOhms at room temp…
