• BQ25638: BQ25638 FAULT_Status issue

  

  q h

  TI Thinks Resolved

  Part Number: BQ25638 BQ25638.txt Hi ti tearm After the BQ25638 triggers the errors in REG0x22 and REG0x25, how should these fault flags (REG0x22_FAULT_Status, REG0x25_FAULT_Flag) be cleared? Currently, our MCU needs to rewrite all registers to clear…

  • 4 months ago
  • Power management
  • Power management forum

• BQ25638: BQ25638 ESD issue

  

  q h

  Part Number: BQ25638 HI As shown in the figure, we have a product that uses the BQ25638. During electrostatic discharge (ESD) testing between SYS and GND, the connection between SYS and BAT always disconnects momentarily and then reconnects. May I ask…

  • 5 months ago
  • Power management
  • Power management forum
Answered

• BQ25638: Questions on battery charging profile for charger IC BQ25638

  

  Kaihang Zhou

  Resolved

  Part Number: BQ25638 Tool/software: Hi, I am recommending the charger IC BQ25638 to my customer. I noticed a difference about battery charging profile on the datasheet between TI’s and MPS’s. On the MPS’s, I find there is a step down on system volt…

  • Resolved

  • 8 months ago
  • Power management
  • Power management forum
Answered

• BQ25638: Settings via I2C

  

  Dice-K

  Resolved

  Part Number: BQ25638 Hi support team, Is it possible to change the settings of the BQ25638 via I2C while it is operating? Is it not possible to change the default values ​​themselves? Regards, Dice-K

  • Resolved

  • 22 days ago
  • Power management
  • Power management forum
Answered

• BQ25638: SYS pin voltage when /CE is High

  

  Dice-K

  Resolved

  Part Number: BQ25638 Hi support team, When VBUS is 5V, /CE is pulled up to VBUS, and the battery voltage is 0V, what will the SYS pin voltage be? Regards, Dice-K

  • Resolved

  • 16 days ago
  • Power management
  • Power management forum
Answered

• BQ25638: ADC state during ultra low power mode

  

  Joe Paolino

  Resolved

  Part Number: BQ25638 Hello, Searching through the datasheet, I was not able to find if the ADC function is automatically disabled when transitioning from battery only normal mode to ultra low power mode (or shutdown). Is the user required to disable…

  • Resolved

  • 2 months ago
  • Power management
  • Power management forum

• BQ25638: Current meter

  

  JDJ

  TI Thinks Resolved

  Part Number: BQ25638 Tool/software: does the charger BQ25638 separately meter the current into the battery pin and Vsys? Or can it not tell how much of the current is going to Vsys vs. VBAT?

  • 7 months ago
  • Power management
  • Power management forum

• BQ25638: comparison between BQ24250 and BQ25638/BQ25638D

  

  Kailun Liu

  TI Thinks Resolved

  Part Number: BQ25638 Other Parts Discussed in Thread: , BQ24250 Tool/software: Hi Team, Could you help to provide charger IC comparison table for selection between BQ24250 and BQ25638/BQ25638D? Thanks!

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• BQ25638: Unexpected charging behaviour

  

  Greg Smith

  Resolved

  Part Number: BQ25638 Other Parts Discussed in Thread: EV2400 Hi. I am evaluating the BQ25638 to charge a 10 Ah 4.2v single cell LiPo battery. I have the EVM and also EV2400 and Battery Management Studio. Using it, when I connect a 12V 3A power supply…

  • Resolved

  • 4 months ago
  • Power management
  • Power management forum

• BQ25638: Hi-Z mode internal resistance does not aligned with TRM

  

  Kailun Liu

  TI Thinks Resolved

  Part Number: BQ25638 Other Parts Discussed in Thread: BQ24250 Hi Team, This is BQ25638 Hi-Z mode resistance error that I would like to check with you: Symptom: On the left side of R341, we're seeing a voltage of 3.3V. The SW is configured to disable…

  • 21 days ago
  • Power management
  • Power management forum

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