• TPS25840-Q1: No Vbus but need D+D-

  

  Leo Yang

  TI Thinks Resolved

  Part Number: TPS25840-Q1 Hi team, Since the system needs to enter download mode, there is no Vbus. But we need the D+D- alive. How can we do in the circuit? Could we add MOSFET to cut off VBUS? Thanks, Leo

  • 4 months ago
  • Power management
  • Power management forum
Answered

• RE: TPS25840-Q1: PCB‘A Screams During TPS25840 Operation

  

  Eric Hartigan

  Resolved

  Hi Rubin, Rubin Chen said: 1.Screams become less sharp but still exist.Are there any suggestions for further optimization? You should be able to find a frequency for a given inductor that doesn't produce the noise. Did you try each of my suggestions…

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

• TPS25840-Q1: The compatibility design of TPS25846-Q1 and TPS25840

  

  Alan Xia

  Resolved

  Part Number: TPS25840-Q1 Other Parts Discussed in Thread: TPS25846-Q1 Tool/software: Hi team， The customer is considering making the LM25830-Q1 and LM25846-Q1 schematics compatible. I found that there are some differences in the design. How should the…

  • Resolved

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

• RE: TPS25840-Q1: Schematic review

  

  Ke Wang

  Hi Rubin: TPS25830A-Q1: https://www.ti.com/tool/PMP30338 TPS25840-Q1: https://www.ti.com/tool/PMP40544 BR, Ke Wang

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

• TPS25840-Q1: DP, DM communication

  

  Iris Shen

  Resolved

  Part Number: TPS25840-Q1 Hi team, What's the behavior of TPS25840-Q1's DP and DM after BC1.2 negotiation is done? Is there still communication data transmitted? Thanks!

  • Resolved

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

• TPS25840-Q1: /BUCK_ST floating

  

  Evan Wang

  Resolved

  Part Number: TPS25840-Q1 Hi All, I have a question about the /BUCK_ST pin of the TPS25840-Q1. Could I leave it floating or the pull-up resistor is needed? What is the risk if we left it floating? Thank you.

  • Resolved

  • over 4 years ago
  • Power management
  • Power management forum
Answered

• TPS25840-Q1: Is it mandatory to pull high EN before DP/DM?

  

  Johnny Guo

  Resolved

  Part Number: TPS25840-Q1 Hi, team, Just want to check that EN must be pull high before DP/DM data switch? If DP/DM data switch first then EN pull high, will VOUT fail to start up to 5V? Thanks. Johnny

  • Resolved

  • over 3 years ago
  • Power management
  • Power management forum
Answered

• TPS25840-Q1: TPS25840-Q1:

  

  Nishida Kamerikar

  Resolved

  Part Number: TPS25840-Q1 Other Parts Discussed in Thread: TPS25830-Q1 , Required pspice model

  • over 6 years ago
  • Power management
  • Power management forum

• TPS25840-Q1: charge current data with different phone

  

  Betty Guo

  TI Thinks Resolved

  Part Number: TPS25840-Q1 Hi team can you share the charge current data of TPS25840-Q1 in different phone condition? thank you

  • over 4 years ago
  • Power management
  • Power management forum

• TPS25840-Q1: Does this part support client mode?

  

  Ziv Zhang

  Part Number: TPS25840-Q1 Hi Sir, Does TPS25840-Q1 support client mode? Thanks,

  • over 5 years ago
  • Power management
  • Power management forum

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