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Showing 698 results View by: Thread Post Sort by
  • BQ25890: Charging IC selection

    Lumina Gui
    Lumina Gui
    TI Thinks Resolved
    Part Number: BQ25890 Other Parts Discussed in Thread: TPS61033 , BQ25638 Dear TI Teams, We have a new project that requires the use of a charging IC, which needs to charging the 1-cell 5000mAH Li-Lon battery and also output 5V/2A to the system load…
    • over 1 year ago
    • Power management
    • Power management forum
  • BQ25890: Register 0x0C returns 0x04?

    Antenna_Head
    Antenna_Head
    Part Number: BQ25890 Other Parts Discussed in Thread: EV2400 Asking on behalf of a customer: I’m tapping into the I2C bus between our processor and the BQ25890 to see the messages exchanged and register values. When the processor writes 0x0C to…
    • over 1 year ago
    • Power management
    • Power management forum
  • BQ25890: OTG and USB charging support

    JH Shin
    JH Shin
    TI Thinks Resolved
    Part Number: BQ25890 Hello, Does the OTG function of BQ25890 only support the OTG function when it is in High ? Or can it support OTG and USB charging together? Thank you. JH
    • over 1 year ago
    • Power management
    • Power management forum
  • BQ25890: output current limit

    liping pan
    liping pan
    TI Thinks Resolved
    Part Number: BQ25890 Hello, In the below link topic, you mentioned the max current limit is about 9A/100us. But I found it documented 1s in your datasheet. Can you clarify which one is the right value? BQ25890: why sys voltage drops - Power management…
    • over 2 years ago
    • Power management
    • Power management forum
  • BQ25890: The differences between BQ25890H

    Kailun Liu
    Kailun Liu
    TI Thinks Resolved
    Part Number: BQ25890 Hi team, I want to check the difference between BQ25890 and BQ25890H, I have seen the HW differences in https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/686336/bq25890-bq25890-and-bq25890h…
    • over 1 year ago
    • Power management
    • Power management forum
  • BQ25890: BQ25890 shutdown leakage current in shipmode

    Lillian Liu(SH)
    Lillian Liu(SH)
    TI Thinks Resolved
    Part Number: BQ25980 Other Parts Discussed in Thread: BQ25890 Hi team: I have a question about BQ25890 to consult: When BQ25890 enters shipmode, what is the shutdown leakage current? What are the theoretical value and measured value? And can I…
    • over 3 years ago
    • Power management
    • Power management forum
  • BQ25890: Can BQ25890 enter shipping mode when it has plugged in?

    Lillian Liu(SH)
    Lillian Liu(SH)
    TI Thinks Resolved
    Part Number: BQ25890 Hi team, My customer have a question about BQ25890. When they use BQ25890 connected to USB, then they set REG09=60, phone powers off and then repeat the "restart" action but can't restart. I want to confirm: When BQ25890…
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ25890: BQ25890

    HA TEASHIK
    HA TEASHIK
    Resolved
    Part Number: BQ25890 Other Parts Discussed in Thread: BQ25980 Hello, I'm a company in Korea, and I designed a battery charging circuit using BQ25890. The battery used a lithium-ion polymer battery and was designed with a battery capacity of 4.2 V/10000…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ25890: BQ25890 ADC sometimes get wrong value

    Feng Xu
    Feng Xu
    Resolved
    Part Number: BQ25890 Hi, I read the BQ25890 ADC converter data periodically. But I find sometimes the value is wrong. Case1. When the VBAT is near 3.5V, but still above 3.5V, sometimes the VSYS value is wrong, which drops to 2.304V. The VSYSMIN…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • BQ25890: calculation power of BQ25890

    Xiaoqiang Shen
    Xiaoqiang Shen
    Resolved
    Part Number: BQ25890 I calculate power based on below guide. But missing MOSFET tr, tf, Qgate, vgs in datasheet. Where can I get it? BQ25890: Guideline for calculation total power dissipation - Power management forum - Power management …
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
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