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  • BQ25756: BQ25756 not charging no switching issue

    Part Number: BQ25756 Tool/software: I have observed a strange issue. I had designed the charger to charge 38.5V 12S lifepo4 battery with charging current of about 10A. I connected the battery and input voltage was also about 45V , but it did not start…

  • BQ25756: BQ25756 Buzzing Noise When VIN ≈ VBAT

    Part Number: BQ25756 Tool/software: Hello, I am using the BQ25756 as a 4S charger. Especially when the input voltage is close to the battery voltage, I hear a buzzing sound. When I observe this with an oscilloscope, I see switching activity on the bootstrap…
    • Answered

  • BQ25756: BQ25756 change to system load node

    Resolved
    Part Number: BQ25756 Tool/software: Hello TI team, Is it acceptable to change the system load node as follows? -- > Because, I want to know battery current exactly without system load current, also control to charge current, only considering battery…
    • Resolved

  • BQ25756: BQ25756 heating up coil

    Part Number: BQ25756 Tool/software: Hello, I'm using BQ25756 to charge a 7-cell LFP battery. At the moment I'm doing tests with a DC power supply as the input. When the input voltage is within the range of 20-27 V (and 1 A of charging current) I can…

  • BQ25756: Shipping mode

    Part Number: BQ25756 Other Parts Discussed in Thread: BQ25750 Tool/software: Helo Is BQ25756 have shipping mode (BATFET Disable Mode ) like in BQ25895RTWR or maybe similar functionality? I cant found in datasheet

  • BQ25756: Mosfets getting damaged

    Part Number: BQ25756 Tool/software: Hi, We are trying to use BQ25756 for Solar Street light Application with output power requirement of 250W. Mostly during programming/ debugging of external controller, mosfets are getting damaged, but its not limited…

  • BQ25756: BQ25756

    TI Thinks Resolved
    Other Parts Discussed in Thread: BQ25750 , BQ25758 , BQ25756

  • BQ25756: ADC error - VBAT

    TI Thinks Resolved
    Part Number: BQ25756 Tool/software: Hello, We are working on a project in the company that uses the BQ25756 as a charger for a supercapacitor pack. The schematic was copied from the BQ25756EVM. The system works fine but we have a problem with the readings…
    • Answered

  • BQ25756: BQ25756 fixed frequency issue

    Resolved
    Part Number: BQ25756 Other Parts Discussed in Thread: BQ25750 Tool/software: Dear Team, I am using BQ25756 IC for BMS application, fixed frequency 75Hz problem found, even after changing FREQ resistor there was no effect on frequency, please help me…
    • Resolved

  • BQ25756: DRV_SUP REGN Connection Question

    TI Thinks Resolved
    Part Number: BQ25756 Tool/software: Hi team, Our application is: 28V Vin, 20V Vout, 140W PD3.1. In this application case, is it suitable to connect DRV_SUP and REGN together? Or do we recommend connecting with an external power supply with DRV_SUP? …

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