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  • BQ25505: BQ25505 vs BQ25570 comparision table

    Resolved
    Part Number: BQ25505 Other Parts Discussed in Thread: BQ25570 , Hi team, Could you provide BQ25505 vs BQ25570 comparision table? My customer is considering those devices for energy harvesting application (Piezo or PV). Regards, Itoh
    • Resolved
    • Answered

  • BQ25505: BQ25505 VBAT_OV not crorrect

    Resolved
    Part Number: BQ25505 Hi The customer design with BQ25505, and find the VBAT_OV is not correct. Attached the schematic ROV1 and ROV2 set VBAT_OV the maximum OV is 3.1V, but in fact, but the actual charge is more than 3.1V. How to solve this problem? …
    • Resolved
    • Answered

  • BQ25505: Pin 6 connection

    Resolved
    Part Number: BQ25505 Hello! There is a contradiction in the datasheet. On page 5, in the Pin Functions table, it says that pin 6 needs to be connected to VSS via the IC's PowerPad. However, in figure 40, the Layout Example, pin 6 is not connected…
    • Resolved

  • BQ25505: Charge supercapacitor through BQ25505

    TI Thinks Resolved
    Part Number: BQ25505 Other Parts Discussed in Thread: BQ25570 Hi, support team My customer has the questions as follow: I use 3 solar panels with open circuit voltage of 2V and short circuit current of 69μA in parallel to charge 0.1F 5.5V supercapacitor…
    • Answered

  • BQ25505: Flexible chip alternate for bq25505

    Resolved
    Part Number: BQ25505 Hi, In my current design there is a bq25505 harvesting power from a solar cell and charges my battery. I am redesigning my electronics for a flexible PCB. Is there a flexible chip version of bq25505 or a similar alternate that is a…
    • Resolved

  • BQ25505: CAD model problem

    TI Thinks Resolved
    Part Number: BQ25505 Hi, I wanted to get footprint information for the BQ25505RGR IC and for that I went to the webpage : https://www.ti.com/product/BQ25505?keyMatch=BQ25505RGRR&tisearch=search-everything&usecase=OPN In the section CAD/CAE symbol…
    • Answered

  • BQ25505: Non-standard configuration allowing temporary removal of load from EH source

    Resolved
    Part Number: BQ25505 I am using a BQ25505 in an energy harvesting application. For reasons specific to the application, I need to periodically remove the load applied to the energy harvester for ~200 ms before re-applying it, and I want to do this without…
    • Resolved

  • BQ25505: BQ25505 VBAT_OK keep low

    TI Thinks Resolved
    Part Number: BQ25505 Hi The customer design with BQ25505, they set Vbat_ OV is 4.5V, Vbat_ OK_ HYST is 4.2V, but it is found that the super capacitor can be charged to 4.5V, while Vbat_ OK is always low. Attached the schematic for your reference. They…

  • BQ25505: VSTOR without primary battery

    TI Thinks Resolved
    Part Number: BQ25505 Hi, My current design is using BQ25505, but the datasheet does not state MUX signal if primary battery is not connected. Will VSTOR keep internal reference to the secondary battery level even if it is lower than the VBAT_OK_PROG when…

  • BQ25505: package size info

    TI Thinks Resolved
    Part Number: BQ25505 Hi team, Customer want to get the BQ25505 package info to set up their PCB library, we can't find in datahsheet, could you help provide the datasheet with package size info? Thanks.

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