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  • BQ24074: BQ24074 BAT pin(2,3) = 1.64V in pre-charge mode.

    TI Thinks Resolved
    Part Number: BQ24074 Hi When my BQ24074 working on pre-charge mode, BAT pin(2,3) voltage is only 1.64V. I tried to remove the battery, the floating BAT pin(2,3) voltage is still 1.64V. Is this normal? Attached is my circuit diagram, please help to check…

  • BQ24074: BQ24074 CHG status does not change

    Part Number: BQ24074 1) The battery charges "successfully" as in, as measured by a DMM, the current into the battery is dropping below the termination current and the voltage is up ~4.2V. I started with a battery at 3.6V. 2) The CHG pin does not…
    • Answered

  • BQ24074: Charge Voltage on discharged battery

    Resolved
    Part Number: BQ24074 Hello, Whilst testing a customers item for compliance, i have noticed that is the battery is discharged to the point of that battery 'Deep Discharge Protection' operates and disconnects it self. When the power is restored the…
    • Resolved

  • BQ24074: BQ24074 charge query

    TI Thinks Resolved
    Part Number: BQ24074 Other Parts Discussed in Thread: BQ28Z610 , BQ28Z610-R1 , BQ25620 Hi The customer design with BQ24074, 4.2V/1.5A/230mA cut-off, battery is 1S3P / 9090mAh when Vbat=3.2V~4.2V, the charging current will interrupt (use BQ28Z610 Log…

  • BQ24074: How to detect if a Non-Rechargeble Battery cell AA is present?

    TI Thinks Resolved
    Part Number: BQ24074 Tool/software: Hello, I am currently working on an hand held device that can be powered by either an external connector, or trough a single rechargeable battery AA. I ve been reading a lot, datasheets and discussions. My concern is…

  • BQ24074: BQ24074 CHG pin not pull low

    Part Number: BQ24074 Other Parts Discussed in Thread: BQ28Z610 , , BQ28Z610-R1 Hi The customer design with BQ28Z610 and BQ24074, The circuit of BQ24074 will maintain hi-Z when CHG (BQ24074 pin9) does not pull low for the first charging after the shipping…

  • BQ24074: Looking for alternate solution

    TI Thinks Resolved
    Part Number: BQ24074 Other Parts Discussed in Thread: BQ21080 , BQ27Z746 , BQ27427 Dear TI Team, I am currently working on enhancing the design of our handheld product used for personnel location tracking. This product operates on a lithium battery…
    • Answered

  • BQ24074: Charger does not stop charging when the terminate current is reached

    Resolved
    Part Number: BQ24074 Hello, I am having a big headache with a charger circuit that I have design for my application. The circuit is presented by the circuit below. The battery is reaching 4.4V and the charging current goes as low as 30mA (or even…
    • Resolved
    • Answered

  • BQ24074: Charger does not stop charging when the terminate current is reached

    Resolved
    Part Number: BQ24074 Hello, I am having a big headache with a charger circuit that I have design for my application. The circuit is presented by the circuit below. The battery is reaching 4.4V and the charging current goes as low as 30mA (or even…
    • Resolved

  • BQ24074: Battery won't charge and PGOOD and CHG LEDs on when no battery is connected.

    Part Number: BQ24074 Greetings, I have built the circuit in the schematic below and have problems with battery charging. None of the external status or EN pins are connected just for bench top testing. When I have an external source and no battery…

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