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  • BQ24765 dead time

    Other Parts Discussed in Thread: BQ24765 Hello, we are using SMBus controlled battery charger BQ24765 in a BMS + Charger PCB of our design. BQ24765 is an integrated power mosfets, NMOS-NMOS, synchronous buck converter. When we measure with the scope…

  • bq24765 EVM: Read Error

    Other Parts Discussed in Thread: BQ24765 , BQ20Z40 Earlier this week I was using a bq24765 EVM to charge/discharge a 4S lipo battery through a bq20z40 EVM. I was able to charge and discharge the battery successfully and carefully put the work away. I…

  • BQ24765 + BQ20Z65 LEDs during charging phase

    Other Parts Discussed in Thread: BQ24765 , BQ20Z65 Good morning all, Our 3S1P Li-ion battery pack is built around a BMS+charger PCB that uses BQ20Z65 as gas gauge and BQ24765 as charge controller. We set the CHGLED=1 so that during the charging phase…
    • Answered

  • Can I drive I2C lines of bq24765 high when bq24765 is not powered i.e. DCINA is not available?

    Resolved
    Other Parts Discussed in Thread: BQ24765 Hello, We are working with bq24765 battery charging controller. I want to drive pull ups of bq24765 ICs lines with external 3.3V supply (small LDO) and not from VREF of bq24765. This is because I want to…
    • Resolved
    • Answered

  • BQ24765 Reverse Polarity Adapter Protection

    Resolved
    Other Parts Discussed in Thread: BQ24765 From the BQ24765 Eval Module, is Q1 (BATFET) otherwise necessary if there is an alternative reverse polarity protection between the charger and the actual adapter. Regards, Pat
    • Resolved

  • BQ24765 + BQ20Z95 + CPU on the same SMbus

    Other Parts Discussed in Thread: BQ24765 Hi there, I'm working on the charger design using the BQ24765 and the BQ20Z95 on the the battery pack. I've 2 charging/discharging situation as below: 1. The CPU will be the host controller to control BQ24765…
    • Answered

  • RE: BQ24765 Output MOSFET failures

    Resolved
    Hello, in my application the BQ24765 dies when the battery is disconnected. The damage is the Low-Side FET is shorted to ground.
    • Answered

  • BQ24765 - battery undervoltage

    Resolved
    Other Parts Discussed in Thread: BQ24765 , BQ20Z80 , BQ29312 , BQ29312A On page 26 of the datasheet for bq24765 it states that if the "battery voltage is still below 2.5V, a 220mA trickle charge current is applied." This would seem to only work with single…
    • Resolved

  • Is 4-layer PCB necessary for BQ24765?

    Other Parts Discussed in Thread: BQ24765 Hello, We would like to know that is it necessary that for correct operation of BQ24765, we need to build that circuit on 4-layer PCB only? Or can the circuit be built on 2-layer PCB as well? If we can…
    • Answered

  • RE: I2C slave - BQ24765 - Battery Charger hold data line low

    Resolved
    Krunal, Wang We are encountering the exact same issue where a charger (BQ24725) is holding the SDA line low after a long time operating, we have come up with a similar work around where we hold SCL low for >35 ms to reset the SDA line, as with your…

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