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Showing 58 results View by: Thread Post Sort by
  • BQ25121: On some devices, SYS output voltage increases to 3.9V when setting the LS/LDO pin to load switch mode

    NateEE
    NateEE
    Part Number: BQ25121 We've obtained new boards for a production run of a product and on some boards are seeing a new issue (3 out of 22 so far). In our circuit we have connected VINLS1 and VINLS2 to the SYS pin, to use the buck regulator output as the…
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: BQ25121: How does one determine the pullup voltage for the I2C lines?

    Anthony Dobaj
    Anthony Dobaj
    Resolved
    Awesome, thank you for the reply.
    • over 8 years ago
    • Power management
    • Power management forum
  • RE: BQ25121 i2c example code for changing sys output

    Nishant Sood
    Nishant Sood
    Steve, I tried reading also but it always returned 0xFF on whatever registers I read! 1) No, I do not have CD pin high, its pulled low by its inbuilt 900k resistor and thats it ,I didnt even break out CD pin as you can see in schematics also because I…
    • over 9 years ago
    • Power management
    • Power management forum
  • Answered
  • Suggestion for battery power solution (power path, charger, fuel gauge)

    Dajgoro Labinac
    Dajgoro Labinac
    Resolved
    Other Parts Discussed in Thread: BQ25121 , BQ25628 Hello. Previously I used the BQ25121 IC for a product and now I'm looking for something similar. I need a similar IC but for 1A single cell li-ion battery with basically all the features of the BQ25121…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25121A: SYS @1.4V

    Urs Beerli
    Urs Beerli
    TI Thinks Resolved
    Part Number: BQ25121A Other Parts Discussed in Thread: BQ25121 Hi there My current design contains a BQ25121A for battery management. After being attached to a power supply (USB) for approx. 12hrs, the BQ25121A has only 1.4V at VSYS. I could not find…
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ25121A: Device not entering into ship mode

    Divya Jyoti Pandey
    Divya Jyoti Pandey
    Resolved
    Part Number: BQ25121A Other Parts Discussed in Thread: BQ25121 , BQ25123 , BQ25120F3A We are experiencing strange behaviour regarding ship mode on BQ25121AYFPT. When we plug the battery into the system, it starts in ship mode after this when /MR presses…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • BQ25150: Register Retention entering and exiting ship mode

    JoHannes Paul
    JoHannes Paul
    Resolved
    Part Number: BQ25150 Other Parts Discussed in Thread: BQ25121 , BQ25121A My team and I are currently looking at the BQ25150 as a charging solution for our high volume consumer electronic. We are noticing that entering and exiting ship mode causes all…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ25120A: bq2512x series

    S.Satoshi
    S.Satoshi
    Resolved
    Part Number: BQ25120A Other Parts Discussed in Thread: BQ25121 , BQ25121A , , BQ25122 Hi, I know that there is already some thread that ask defference of bq2512x series but let me make clear it here. Can you explain the difference between bq25121…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • BQ25120A: Input quiet time for Ship Mode transition

    Johannes Brecher
    Johannes Brecher
    TI Thinks Resolved
    Part Number: BQ25120A Other Parts Discussed in Thread: BQ25121 , Hello, the datasheet states in the Section "9.3.1.1 Ship Mode Entry and Exit" that there is a period tquiet in which the conditions CDn=High MRn=High Vin<Vuvlo must remain…
    • over 8 years ago
    • Power management
    • Power management forum
  • RE: BQ25120A: Is there no 2.5 V version?

    Philip Gruebele
    Philip Gruebele
    I also need a BQ25121 equivalent BQ25121A (2.5V sys out). Is this coming or is TI dropping the BQ25121x altogether from the product line?
    • over 8 years ago
    • Power management
    • Power management forum
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