• BQ25790: 2Khz switching frequency noise in SW

  

  Yishan Chen

  Part Number: BQ25790 Tool/software: Hi Jeff, When BQ25790 is negotiated to 12V in and when customer pull down CE, they found there is a 2Khz switching noise add into the SW point, this cause the audio noise, Do you have any insight on that? Please…

  • 5 months ago
  • Power management
  • Power management forum

• BQ25790: Force IBAT discharge current

  

  Yishan Chen

  TI Thinks Resolved

  Part Number: BQ25790 Tool/software: Hi Jeff, By setting the force IBAT discharge current to 1, they found the oscillation will be less when they remove battery in charging status. What is the reason here? And, what is the discharge current inside…

  • 8 months ago
  • Power management
  • Power management forum

• BQ25790: SW1 and PMID have voltage in default mode

  

  Yishan Chen

  TI Thinks Resolved

  Part Number: BQ25790 Tool/software: Hi Jeff, Why BQ25790 have 3.5V in PMID and SW1 in default mode. (Default mode means only connect battery and wait for OTG output) Thank you, Yishan Chen

  • 6 months ago
  • Power management
  • Power management forum
Answered

• BQ25790: Design verification for specific battery type

  

  Johann van Niekerk

  Resolved

  Part Number: BQ25790 Other Parts Discussed in Thread: TPS62172 , , BQ24105 , BQ41Z50 Tool/software: I have an application that requires and extremely tight layout, with a high voltage 3S battery. The design input on VBUS will be with 15V from a USB…

  • Resolved

  • 5 months ago
  • Power management
  • Power management forum

• BQ25790: Request for recommendations for fast charging solutions for portable devices

  

  JH Shin

  TI Thinks Resolved

  Part Number: BQ25790 Other Parts Discussed in Thread: TPS25750 , BQ25890 Tool/software: Hello, My customer is looking for fast charging solutions that can support the following conditions. - Battery : 2 cells in parallel (1S2P) - Charging voltage…

  • 3 months ago
  • Power management
  • Power management forum
Answered

• BQ25790: BQ25790

  

  Dhiraj Phadte

  Resolved

  Part Number: BQ25790 Hi , We are developing a Handheld device. We are using BQ25790EVM for charging a Lithium Ion Battery of 3.7V . We are able to read the battery voltage correctly. But while charging the Battery terminal voltage is increased…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

• BQ25790: BQ25790 Charge Current Register Take Effect Time

  

  Qiang Ren

  TI Thinks Resolved

  Part Number: BQ25790 Team, My customer is using BQ25790, we want to know how much time does the device take to take effect, when we using I2C to configure the charger current(current_Reg)? Thanks!

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• BQ25790: About ADC accuracy

  

  teritama

  Resolved

  Part Number: BQ25790 Other Parts Discussed in Thread: BQ25792 , BQ25672 Tool/software: Hi team, In related question: BQ25790: ADC Accuracy Internal ADC accuracy is said "about +/= 25% over temp with about a +50mA dc offset". On BQ25792 and BQ25672…

  • Resolved

  • 11 months ago
  • Power management
  • Power management forum
Answered

• BQ25790: Quality questions

  

  Hideki Hayashi1

  Resolved

  Part Number: BQ25790 Tool/software: HI team, 1. I think the device has shoot through protection at switching FET, how to do this? 2. Regarding the spec, is it tested in each chip when production that minimum voltage input to maximum Iout (VBUS = 3…

  • Resolved

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

• BQ25790: Query for BQ25790 Vbat_short

  

  Harry Ma

  TI Thinks Resolved

  Part Number: BQ25790 Hi Team Is the parameter of following picture for 1 cell or 2 cells ?

  • over 2 years ago
  • Power management
  • Power management forum

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