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  • BQ24735: BQ24735 problem

    TI Thinks Resolved
    Part Number: BQ24735 I try to repair laptop ACER SWIFT SF314-51 , which is dead. I found out there is a problem with BQ24735 - ACDRV (pin 4) is only about 0.9V. ( if i remove resistor - coming from that ACDRV to mosfet, value is still not good). Few others…

  • BQ24735: Issue with input protection MOSFET failing and going short circuit

    TI Thinks Resolved
    Part Number: BQ24735 Other Parts Discussed in Thread: CSD17307Q5A We have implemented the design pretty much verbatim as per the BQ24735EVM-710 evaluation PCB schematic, including using the same peripheral components (see below schematic). We have seen…
    • Answered

  • BQ24735: Device ID reads differently than datasheet indicates

    Resolved
    Part Number: BQ24735 Hi, I designed above charger chip into my system and am programming it. The Device ID comes back as 0x000B instead of the 0x001B that the datasheet indicates (latest available from your site, revised April 2015, page 22). What is…
    • Resolved
    • Answered

  • RE: BQ24735: Voltage spikes when plugging battery into not energized circuit, potentially damaging device

    Resolved
    Hi Chris, The problem originates from the removal of the BATFET. The battery charges up the input caps, through the inductor, thus resulting in a large overshoot. If we add a diode in place of the BATFET, from the battery to the input rail. This diode…

  • BQ24735: Six BQ24735 connected together; timing issue causing surge current through BATFET

    TI Thinks Resolved
    Part Number: BQ24735 We are using six instances of the BQ24735 chip to charge six lithium-ion batteries (minimum 10V, maximum 16.8V). The input to all six chargers is a regulated 24V source from an AC-to-DC power supply. The outputs of all six chargers…

  • BQ24735: is there a way to turn the charger on and off

    TI Thinks Resolved
    Part Number: BQ24735 Hi Team, Do you know if it is possible to turn it off ie even though power is available you can turn off all switches ?

  • BQ24735: BQ24735 can not charge

    TI Thinks Resolved
    Part Number: BQ24735 Hi The customer design with BQ24735. When only the adapter (DC 19V6A) is connected, the ACDET measures 2.8V and the system can be powered on. When the lithium battery(3 series cells) is connected, the first 6s is pre-charge, and the…
    • Answered

  • BQ24735: Replacement for BQ735 is the BQ24735?

    Resolved
    Part Number: BQ24735 Hello. 1) From where can we download datasheets for the BQ735 battery charger ? 2) Can the BQ735 battery charger be replaced with the BQ24735 ? 3) Is the BQ24735 a drop-in-replacement for the BQ735? 4) What is the improvement to…
    • Resolved

  • BQ24735: ACOK briefly goes low when approaching UVLO

    TI Thinks Resolved
    Part Number: BQ24735 Other Parts Discussed in Thread: BQ24780S Hello there, I am trying to adjust valid input voltage range to be 11.9V-15.1V. The values of resistors on voltage divider to ACDET are 470k and 121k. I'm testing with the power supply, voltage…

  • BQ24735: BQ24738H reduce power consumption

    TI Thinks Resolved
    Part Number: BQ24735 Hi Team, My customer use BQ24738H on their notebook product and we found the power consumption is fail when system enter S5 status (system turn off) without adapter. Except for below datasheet description, do you have other suggestions…

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