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Showing 269 results View by: Thread Post Sort by
  • BQ25883: BQ25883 - Strange behavior - Vsys drops to 0V with no battery

    Mike Sprauve
    Mike Sprauve
    Part Number: BQ25883 Hi, I am seeing very strange behavior with the BQ25883, some of the anomolies is that it keeps entering into Hi-Z state and not charging when there is a battery plugged into the circuit. But when there is no battery, Vsys starts…
    • 1 month ago
    • Power management
    • Power management forum
  • BQ25883: BQ25883 – REGN Pin Not Powering Up

    Ramkumar Radhakrishnan
    Ramkumar Radhakrishnan
    TI Thinks Resolved
    Part Number: BQ25883 Tool/software: We are using the BQ25883 IC to charge a 2-cell Li-ion battery pack (7.4 V nominal) . The circuit has been designed following the datasheet recommendations. The issue we are encountering is that the battery does not…
    • 7 months ago
    • Power management
    • Power management forum
  • BQ25883: Does BQ25883 have Reverse Polarity Protection for battery connecting?

    Jon WANG
    Jon WANG
    TI Thinks Resolved
    Part Number: BQ25883 Tool/software: Dears, Does bq25883 have a function to prevent battery reverse connection? If not, are there any reference circuits available in this regard?Thanks.
    • 8 months ago
    • Power management
    • Power management forum
  • BQ25883: How to apply DCP 3A with BQ25883

    David Lee
    David Lee
    TI Thinks Resolved
    Part Number: BQ25883 Tool/software: We are currently using the BQ25883 as shown below. When using a smartphone PD-compatible charger, it is currently operating in 5V 1.5A DCP mode. According to the datasheet, 5V 3A DCP is supported. Could…
    • 10 months ago
    • Power management
    • Power management forum
  • BQ25883: there is a jump in the ADC reading value on the BQ25883 TS pin

    Jon WANG
    Jon WANG
    TI Thinks Resolved
    Part Number: BQ25883 Dears, My client has noticed that there is a jump in the ADC reading value on the BQ25883 TS pin, but the measured level of the NTC pin is stable. May I ask if the ADC reading on the TS pin has been filtered?
    • 6 months ago
    • Power management
    • Power management forum
  • BQ25883: Linux 6.1 Driver for BQ25883RGER

    Son Le Hung
    Son Le Hung
    Part Number: BQ25883 Dear TI, We used BQ25883RGER for our product and now we need to add driver for this IC, we are working on Linux 6.1. Please share to us the latest driver. Regards,
    • 10 days ago
    • Power management
    • Power management forum
  • [FAQ] BQ25883: FAQ BQ2588X VSYS Soft Start

    Bill Johns
    Bill Johns
    Part Number: BQ25883 The BQ25883 and other devices in the family have a Soft Start Feature on Vsys output. This can be seen in datasheet fig77 that Vsys has a slow ramps-up. The Soft-Start feature at power up is noted in par 8.3.3.4. Slow rate of…
    • 1 month ago
    • Power management
    • Power management forum
  • BQ25883: Need 5A Output Support for RPi CM5 Portable Device – BQ25895 / BQ25883 / BQ25731RSN

    Soumyajeet  Dutta
    Soumyajeet Dutta
    TI Thinks Resolved
    Part Number: BQ25883 Other Parts Discussed in Thread: BQ25895 , , PMP40496 Tool/software: Hello, I’m developing a portable device based on the Raspberry Pi Compute Module 5 (CM5) . The system is powered via battery and external supply , and requires…
    • 11 months ago
    • Power management
    • Power management forum
  • Answered
  • BQ25883: Vsys output too slow for our MCU suspend rail

    Olivier Courtois
    Olivier Courtois
    Resolved
    Part Number: BQ25883 Hi, It's been known from the datasheet fig77 that Vsys has a rampup pretty slow. This is prior to VREG ramping up, see scopeshot. This is roughly 50V/s for 47ms, pretty slow. We connect Vsys to an LDO which supplies a suspend rail…
    • Resolved
    • 1 month ago
    • Power management
    • Power management forum
  • BQ25883: Battery not charging, REGN = 0V

    Rathin Chandra
    Rathin Chandra
    TI Thinks Resolved
    Part Number: BQ25883 Tool/software: We are using BQ25883 in our design for charging a 2S Li-ion battery (7.4V nominal). The issue we are facing is that the battery is not charging . On checking, we observed that the REGN pin is at 0V . Details: …
    • 7 months ago
    • Power management
    • Power management forum
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