Answered

• BQ25303J: Diode necessary?

  

  Maria Senyer

  Resolved

  Part Number: BQ25303J Tool/software: Dear Technical Service, I followed the recommnedations from one of your colleagues about the BQ25303 and I designed this circuit: Now what I got is that if I have D1 placed I see a significant voltage drop between…

  • Resolved

  • 3 months ago
  • Power management
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• RE: BQ25303J: Temperature Resistor calculations

  

  Ning T

  Hi Rob, Are you able to get the RT1 and RT2 calculated values ( RT1 = 4.32 kΩ, RT1 = 21 kΩ) on 9.3.2.6 Thermistor Temperature Monitoring using the excel calculator? Thanks, Ning.

  • 4 months ago
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• BQ25303J: IC does not charge, REGN not present

  

  Pink Fluffy

  TI Thinks Resolved

  Part Number: BQ25303J Tool/software: Hi fellow engineers, In a customer's application, the BQ25303 sometimes fails somewhere within 6 months of being in the field. Failure mode: device does not charge. We have several units that show the same behavior…

  • 5 months ago
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• RE: BQ25303J: Can't get 3A charging

  

  Ning T

  Hi, We have not heard from you for a while. The thread is considered solved and closed. Thanks, Ning.

  • 5 months ago
  • Power management
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• BQ25303J: Typical Application circuit from datasheet

  

  Maria Senyer

  TI Thinks Resolved

  Part Number: BQ25303J Tool/software: Dear folk(s), I am designing a new device and I want to include the BQ25303J in it. My device will have a 3.7V 1-cell Li-Po battery, and will be charged from a USB. So, the BQ25303J comes handy for the battery charging…

  • 7 months ago
  • Power management
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Answered

• BQ25303J: STAT pin

  

  kob

  Resolved

  Part Number: BQ25303J Tool/software: Hi, Table 9.2 in the datasheet states that the STAT INDICATOR is high in HiZ mode, sleep mode, and charge disable. Table 9.3 in the datasheet states that the REGN LDO is off and the STAT PIN is open in HiZ mode, sleep…

  • Resolved

  • 8 months ago
  • Power management
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Answered

• BQ25303J: charge faults

  

  kob

  Resolved

  Part Number: BQ25303J Tool/software: Hi, In what cases does STAT blink? Is it correct to understand that this means "when the following conditions are met regardless of charging"? Or is it when the following conditions are met when attempting…

  • Resolved

  • 9 months ago
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• BQ25303J: Circuit configuration of the BQ25303

  

  kob

  TI Thinks Resolved

  Part Number: BQ25303J Tool/software: Hi, Let me confirm something in relation to sagar m's inquiry from over two years ago. From the attached circuit diagram, the BQ25303 appears to be configured as Figure 10-1 on the datasheet, that is, a circuit…

  • 8 months ago
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• BQ25303J: charging safety timer

  

  kob

  TI Thinks Resolved

  Part Number: BQ25303J Tool/software: Hi, In the datasheet, section 9.3.2.5 Charging Safety Timer states that one of the conditions for resetting the safety timer is "VBUS voltage is recycled." What kind of change in VBUS does "VBUS voltage is…

  • 9 months ago
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  • Power management forum
Answered

• BQ25303J: charging safety timer

  

  kob

  Resolved

  Part Number: BQ25303J Tool/software: Hi, In the datasheet, section 9.3.2.5 Charging Safety Timer states that one of the conditions for resetting the safety timer is "VBUS voltage is recycled." What kind of change in VBUS does "VBUS voltage is…

  • Resolved

  • 9 months ago
  • Power management
  • Power management forum

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