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Showing 273 results View by: Thread Post Sort by
  • BQ25892: question about the charge current

    Nan Zhang
    Nan Zhang
    TI Thinks Resolved
    Part Number: BQ25892 Hi team, They customer is using the bq25892 and they set the charging current at 5A. They find that the charging current is 5A when the Vsys without load. But the charging current decreases to 4A when Vsys power supply the load…
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25892: is there a selectable switching frequency device?

    Ruixin Feng
    Ruixin Feng
    TI Thinks Resolved
    Part Number: BQ25892 Hi team, Customer used BQ25892 before, but they now need a lower switching frequency charger with similar features and functions. I was wondering if you have any recommendation. Thanks! Rayna
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25892: Change Registers with Low Vbat

    Allan Fan
    Allan Fan
    TI Thinks Resolved
    Part Number: BQ25892 Hi expert, May I check with you is there a threshold voltage in register would limit the write access and change the register value back to default if in battery mode only AND the Vbat lower than the threshold, maybe Vsys(min)?…
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25892: Charge Efficiency at Small Charge Current

    Allan Fan
    Allan Fan
    Part Number: BQ25892 Hi expert, Do we have charge efficiency at small charging current 0-200mA can share with customer? Regards, Allan
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25892: Could BQ25892 pin 24 be safely connected to VBUS?

    Southern Engineering
    Southern Engineering
    TI Thinks Resolved
    Part Number: BQ25892 Other Parts Discussed in Thread: BQ24193 Question: Could BQ25892 pin 24 be safely connected to VBUS? We are well aware that BQ25892 pin 24 is NC. But besides that (and pin 12 QON_) BQ25892 appears pin compatible with some of the…
    • over 3 years ago
    • Power management
    • Power management forum
  • BQ25892: DPM function check

    Rock Shao
    Rock Shao
    TI Thinks Resolved
    Part Number: BQ25892 Hi Sir, We have several questions about DPM operation, please check below list. If FORCE_VINDPM bit to 0, then VINDPM_OS to 11111 and VBUS is 9V. 1. What’s the value of VINDPM threshold? 2. Is it 6.2V? 3. And if yes, how can I know…
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25892: BQ25892 TS register bit 7 not accurate with datasheet

    Aaron Dunkin
    Aaron Dunkin
    TI Thinks Resolved
    Part Number: BQ25892 Reading the TS voltage register, although my data sheet says bit 7 is "Reserved: Always 0", I noticed that bit is toggling correctly and the result would be correct if i count that as 58% which would make sense since bit 6 is 29%…
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ25892: VSYS below 3.5 V when VBAT<3.5 V

    Stefan Caps-Kuhn
    Stefan Caps-Kuhn
    Resolved
    Part Number: BQ25892 Hi, im designing a charging circuit with the BQ25892. However, when the battery voltage drops below 3.5 V, VSYS is not regulated above 3.5 V. VSYS has unfortunately the exact same voltage level as the battery. I measured the following…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25892: Do we have ways to improve charging current while loading?

    Nan Zhang
    Nan Zhang
    TI Thinks Resolved
    Part Number: BQ25892 Hi team, It is clear that BQ25892 can support 5A(the customer set the charging current)total between both battery and VSYS. So the charging current would be less than 5A while the VSYS are having load. The customer want to know…
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25892: Input current limit question when using cascade dual charger

    Statham Su
    Statham Su
    TI Thinks Resolved
    Part Number: BQ25892 Hello Sir: We are following the document number of TIDUC92 to do some application circuit. When below condition, we found the MASTER charger cannot limit input current by ILMIT register. Test condition: VBUS input voltage…
    • over 2 years ago
    • Power management
    • Power management forum
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