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  • BQ24753: Ringing noise at battery charging circuit

    TI Thinks Resolved
    Part Number: BQ24753 Dear, We are using the below attached circuit in our design.The Ringing noise is observed at TP49 which is about 300mV(Battery charging voltage). after that we try to increase the rise time of the switching circuit so R559 and R568...

  • BQ24753: BQ24753 can't charge the battery

    TI Thinks Resolved
    Part Number: BQ24753 I design a 3 cells Li-Ion battery charger circuits using BQ24753 ,the test result are that the vref pin voltage is 3.3V, but the voltage is always is high of the acdrv pin in the situation of the presentation of ac adapter and whether...

  • BQ24753: Current Requirement of BQ24753

    TI Thinks Resolved
    Part Number: BQ24753 Hi Team, I am making a power budget for my board and I am using BQ24753 part in it , I am bit confused about how to put the current required for this IC can you please suggest. this for power estimation. I have attached power...

  • BQ24753: Can I use this part for charging 7.4V , 10Ah Li ion battery

    TI Thinks Resolved
    Part Number: BQ24753 Hi team, We are designing a battery operated device and we are planning to use a battery with 7.4V ,10AH battery . And we have a requirement that it should be charged within 4 hours , DC Input voltage is 9V and device should use...

  • RE: BQ24753A: Bq24753A adapter and system current.

    Hi Daria, BQ24753A is buck achitecture, BQ25713 is buck boost NVDC architecture. And BQ25713 is also 800kHz /1.2Mhz switching frequency. So efficiency is not as good as BQ24753. Please keep this in mind. For power management, BQ25713 can meet your...

  • bq24753 "head" voltage requirements

    We are operating at 15V and charging a 12.6 volts 3 cell LiIon pack at 160ma. As voltage of the cells rise, the charging current drops off. I thought this was a CV termination but it starts too early. And you can make it go away by raising the voltage...

  • BQ24610 or BQ24705 or BQ24753 ?

    Hi, I have an application to charge 3 cells Li-Po batteries. For first protos Im looking for BQ24610 or BQ24705 or BQ24753, but the input voltage is from a turbine with up to 24V. The cells charging is OK, but my system support 9-15V, so I can not connect...

  • Bq24753 unable to go into Synchronous operation; no charge pump

    Yellow is Voltage out of L1 Blue is high gate voltage Q4 We are getting very low currents out from the BQ24753 design, and they are dependent on the voltage difference between V+Raw and VPack. This is to be expected if the charge pump is not working...

  • BQ24753A - no end of charging

    • Resolved
    Hey guys, I'm currently testing the BQ24753A. While I was charging my LiPo battery (2 cells @ 8.34V, 5000mAh) I noticed that there is no charge cut off when the current is dropping below a certain value. I don't know the exact current limit for my battery but it is recommended as far as I know...

  • RE: Charging issue with BQ24753A IC

    Thanks for providing the comparison document.However as per the comparison table every changes are implemented properly while migrating from BQ24750 to BQ24753 but still issue does exist.Let me know how we can debug the same?

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