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  • BQ25040: What is LDO for + BAT capacitance question...

    TI Thinks Resolved
    Part Number: BQ25040 I am including the BQ25040DQCT part in a design. The design takes 5V power from a wallwart, connects to the BQ25040DQCT to charge a .37V 18650 format Li-ion battery, and then goes through a DC-DC converter to produce a 3.3V source…

  • BQ25040: is compliant to Annex G.9 of IEC 62368-1?

    Part Number: BQ25040 Extract from annex B.4.1 IEC 62368-1: "except for integrated circuit current limiters complying with clouse G.9, a component failure simulated by short-circuiting any two leads and open-circuiting any one lead of the component one…
    • Answered

  • BQ25040: Using charger without host MCU

    Resolved
    Part Number: BQ25040 Other Parts Discussed in Thread: , BQ25170 , BQ24040 I am using the bq25040 at a standalone battery charger for a single LiPo battery. There is no MCU on this board and I would like to program the fast charge current to ~500mA.…
    • Resolved

  • bq25040 - Trouble Getting Desired Modes Using EN/SET Pin

    Other Parts Discussed in Thread: BQ25040 I have been using the bq25040 successfully with its default mode. I now need to be able to switch to the USB100 mode. However, in spite of giving the chip either two or four pulses on the EN/SET line, it still…
    • Answered

  • Automatic charge termination in bq25040

    Resolved
    Other Parts Discussed in Thread: BQ25040 , BQ24040 Hello, I'm planing to use bq25040 in my project but I want to use it as a standalone device without any host microcontroller. Is it possible in some way to automatically terminate charge of the battery…
    • Resolved

  • BQ51052B: Wireless charging does not working.

    Part Number: BQ51052B Other Parts Discussed in Thread: BQ25040 , , BQ51013B-Q1 , BQ25171-Q1 , BQ25170 , BQ51013B Hi there, I am having a problem with BQ51052B and BQ25040. I have designed a handheld before and it contains wireless charging and wired…

  • Higher voltage version of the LM3658?

    Other Parts Discussed in Thread: LM3658 , BQ24075 , BQ24040 , BQ25040 Hello: We are currently using the TI LM3658 device in a few designs. In the field, we have had a few boards damaged by end customer use. We believe that some customers are plugging…
    • Answered

  • Re: Help-High School Project- Energy Harvester

    Resolved
    As suggested, I ordered the samples of the bq24090 and bq25040. Do I need to order the EVMs for those as well..?

  • bq24050 Charge Current

    Other Parts Discussed in Thread: BQ24050 , BQ25040 Hi all, I've been looking at an issue that came up where customers have been noticing very long charge times in a few instances. I've noticed now a couple times after looking further into this problem…
    • Answered

  • Re: TPS63030 application

    Resolved
    Are you looking for a single cell battery charger? We have several to pick from, including the bq25040, bq24040, bq24030. All of those are linear chargers. The bq24150 is a switchmode charger.

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