Answered

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

  

  Rubin Chen

  Resolved

  Part Number: TPS25840-Q1 Tool/software: After the 25840-Q1 is powered on, the PCBA howls. I use a multimeter to measure the power supply: VIN =12 V, VCC =5V, VOUT (PIN2 of inductor L1) =2.69 V. When the output inductor is disconnected, the PCBA does…

  • Resolved

  • 3 months 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

  • 9 months ago
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• 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

  • 8 months 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 1 year ago
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  • 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 2 years ago
  • Power management
  • Power management forum
Answered

• RE: TPS25830A-Q1: Is it compatible with Nintendo Switch?

  

  Peter Xu

  Resolved

  Hi Ke, Can NS be charged by TPS25840-Q1? TPS25840-Q1 only supports BC1.2. Regards, Peter

  • 4 months ago
  • Power management
  • Power management forum

• TPS25846-Q1: Communication signal quality testing

  

  HW TDC

  TI Thinks Resolved

  Part Number: TPS25846-Q1 Other Parts Discussed in Thread: TPS25840-Q1 Tool/software: Hello, The attachment is the eye diagram and impedance test report of the TPS25846Q1 application product we tested. Please help evaluate and provide suggestions for modification…

  • 3 months 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 3 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 3 years ago
  • Power management
  • Power management forum

• TPS25840-Q1: Current draw of more than 1.5A

  

  Danilo A.

  TI Thinks Resolved

  Part Number: TPS25840-Q1 Hi Team, We would like to ask your help regarding the customer's inquiry. We are currently using this chip on our system; it is a 5 V, 3.5 A USB Type-A converter with BC1.2 However, when we plug in USB devices, the maximum…

  • over 3 years ago
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  • Power management forum

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