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  • BQ25505: BQ25505 VSTOR cannot output voltage to the load

    Part Number: BQ25505 Hi I have a query need your help. VBAT_SEC is connected to the battery 3.8V. Initially, there is no load and the voltage can be output normally, and then the voltage can be output normally when connected to the load. Initially, there…
    • Answered

  • BQ25505: Inquire about BQ25505 or BQ25504 differences and design

    Resolved
    Part Number: BQ25505 Other Parts Discussed in Thread: BQ25570 , BQ25504 , Hello. The BQ25570 circuit I asked you about earlier works well because the problem has been solved. When applying mass production products, the circuit is changed, so the output of…
    • Resolved
    • Answered

  • BQ25505: BQ25505 VDC_IN voltage level

    Resolved
    Part Number: BQ25505 I have a solar cell with VOC = 3V (@ sunlight) approximately when not connected to BQ25505. I have connected my solar cell, battery and other components to BQ25505 chip according to the datasheet. When my solar cell is connected to…
    • Resolved

  • BQ25505: BQ25505 input pins impedance

    TI Thinks Resolved
    Part Number: BQ25505 I have my solar cell connected to BQ25505 according to the datasheet simplified schematic below. This is a permanent connection in my system and I can not change it unless I break into my module. The battery is external to my system…

  • BQ25505: VB_SEC_ON

    TI Thinks Resolved
    Part Number: BQ25505 Hi TEAM Let me ask a the short question. ・Could you tell me about the ON condition and voltage of VB_SEC_ON? 　（Will it be on only while VBAT_OK is high? And what will happen to the output voltage?) best regards TATSU

  • BQ25505: Battery is not charging

    Part Number: BQ25505 Other Parts Discussed in Thread: BQ25570EVM-206 Hi, We are using BQ25505 boost charger to recharge a secondary battery. Test setup description as below: A discharged battery of 2.75V is connected across VBAT_SEC pin.. VIN_DC is supplied…
    • Answered

  • BQ25505: BQ25505 - operation with faster MPPT update rate

    Resolved
    Part Number: BQ25505 Other Parts Discussed in Thread: BQ25504 I have an energy harvesting application that requires an MPPT update rate faster than once every 16 seconds. I am using a BQ25505 and forcing a faster update rate by momentarily disabling &…
    • Resolved

  • BQ25505: Battery voltage with 1.5 to 2.7v rating

    TI Thinks Resolved
    Part Number: BQ25505 Other Parts Discussed in Thread: BQ25570 , Hi Experts, We would like to ask if the BQ25505RGRT charger IC does support battery rated 1.5 to 2.7V. Is it possible for this rechargeable rating? Thank you. Regards, Archie A.
    • Answered

  • RE: BQ25505: BQ25505 part EN pin function

    Resolved
    Thanks Jeff, I drive /EN pin with 5V when an external USB charger is attached (to charge my battery) to disable BQ25505 charging from solar source. In case battery voltage is low lets say battery is fully depleted or VBAT < 1.9V, as you mentioned the…
    • Answered

  • 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

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