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  • BQ25798: BQ25798: VAC2 pin (pin 8) gets damaged after migrating from BQ25792 + TPS25750 to BQ25798 + TPS25751

    Part Number: BQ25798 Other Parts Discussed in Thread: BQ25792 , TPS25750 , TPS25751 , TPS25751A Hello, We have a charger board that worked without issues using BQ25792 + TPS25750. In the new revision we moved to BQ25798 and TPS25751. On the new boards…

  • BQ25798: BQ25798 VSYS Pin Shorting Issue

    TI Thinks Resolved
    Part Number: BQ25798 Other Parts Discussed in Thread: TPS25751 , Hello, The customer is planning to use both the BQ25798 and TPS25751 in their design. At the moment, the customer is evaluating the BQ25798 separately from the TPS25751. During this…

  • BQ25798: BQ25798 REGN shorted to ground

    Part Number: BQ25798 Hi, I'm working on a device using the BQ25798RQMR and I'm seeing some behavior that I can't explain. Initially, the board seems to work correctly. I can read the I²C telemetry, and the device charges normally, with the status…

  • BQ25798: BQ25798 power consumption and efficiency

    Part Number: BQ25798 Good day, As an electronics design bureau we reworked an existing battery pack design for a client. These are meant to use a small ( ~7 W, ~6 VOC ) solar panel to top up a 3000 mAh 4S LiPo stack. The battery charge is used by a controller…
    • Answered

  • BQ25798: BQ25798 Charger IC – Repeated IC Damage During 2S Configuration

    Resolved
    Part Number: BQ25798 Hi, I am using the BQ25798 charger IC in my design, and I developed the schematic based on the recommendations in the datasheet. I am facing an issue during testing: REGN: Approximately 5 V 1S configuration: VSYS is…
    • Resolved

  • BQ25798: BQ25798 has Power but after cycling inputs it blocks charging.

    TI Thinks Resolved
    Part Number: BQ25798 The BQ25798 is part of an UPS system with two power inputs(AC and DC) plus a battery. So three sources of power. VBUS line is the power line that never falls. The battery Feeds directly VBUS when it reaches 11V. I need a way to clear…
    • Answered

  • BQ25798: BQ25798 SCH Confirmation

    Resolved
    Part Number: BQ25798 Hi Teams, The customer is using BQ25798+BQ25751D to develop a power board for a companion robot. Please help confirm if the schematic is reasonable and provide reasonable suggestions. Thank you 13_Charging Circuit.pdf
    • Resolved

  • BQ25798: BQ25798 – ACDRV1 not activated and battery charging issue

    TI Thinks Resolved
    Part Number: BQ25798 Other Parts Discussed in Thread: BQSTUDIO , EV2400 Dear Texas Instruments Technical Support, I am developing a battery charging system using the BQ25798 buck-boost charger IC and have encountered an issue where the AC-side DC…

  • BQ25798: BQ25798: Charger does not transition from battery power to VAC1 input without full power cycle

    Part Number: BQ25798 Hi, We are using the BQ25798 in a 2S Li-ion application and are seeing an issue where the device operates correctly if VAC1 is connected before the battery, but does not start charging or properly transition to input power if the…

  • BQ25798: Looking for Linux driver for BQ25798

    TI Thinks Resolved
    Part Number: BQ25798 Other Parts Discussed in Thread: BQ25792 Hi, I'm going to implement a BQ25798 driver for zephyr. I found this driver link on other post for BQ25798 and BQ25792, but it seems not available now. https://git.ti.com/gitweb?p=ti-analog…

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