• TPS3897: Ct range of tps3897

  

  Antony Fu

  TI Thinks Resolved

  Part Number: TPS3897 Hello Team, Would you like to help me check the Ct range of tps3897? maybe we have one project need to set the delay time to several second, I am not sure this part has problem or not if using very large Ct. Thanks, Antony

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

• TPS3897: Enable pin can be used for manual reset?

  

  Takashi Onawa

  Resolved

  Part Number: TPS3897 Hi Team, My customer is wondering if Enable pin of TPS3897 can be used for manual reset now. Do you have any concerns such the following use case? Regards, Takashi Onawa

  • Resolved

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

• TPS3897: Vsense on before Vcc

  

  Russell Wetherley1

  Resolved

  Part Number: TPS3897 Hello E2E, Is there any concern if we have Vsense on before VCC is applied for TPS3897? Or are we okay as long as table 7.3 is met regardless of if the device is powered or not? Regards, Russell

  • Resolved

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

• TPS3897: VCC and Enable sequence question

  

  Ann_Lien

  Part Number: TPS3897 Hello expert, May we know if there is any sequence requirement for Vcc and EN? We checked for datasheet and EVM user guide, EN and Vcc are connected together directly. May we know if it is okay for use? Thanks a lot! Best regards…

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

• TPS3897: delay time calculation

  

  Ann_Lien

  Resolved

  Part Number: TPS3897 Hello expert, Customer has two questions about TPS3897 on the delay time setting. According to datasheet equation (2), it seems like it is not match about below table value. And also, do we have maximum delay time limitation? Customer…

  • Resolved

  • over 3 years ago
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  • Power management forum
Answered

• TPS3897: pulse generator for nano second pulse

  

  Frank(EP) Liu

  Resolved

  Part Number: TPS3897 hi, My customer wants to design a pulse generator and the pulse is around few nano second. also, the pulse width is adjustable. I found the app note below. but it's for mini second range. https://www.ti.com/lit/an/sbva061/sbva061…

  • Resolved

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

• TPS3897: sense input negative voltage will arrive -0.6v,

  

  Frank Xiao

  TI Thinks Resolved

  Part Number: TPS3897 Hi team, My customer is using the TPS3897 now, and the sense input negative voltage will arrive -0.6v, over the Absolute Maximum (-0.3v), whether it has risks here? Thanks.

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

• TPS3897: Can Vsense have voltage applied be Vcc?

  

  Russell Wetherley1

  Resolved

  Part Number: TPS3897 Hello E2E, Can a voltage be applied to the Vsense pin of the TPS3897 before Vcc as long as the 7V_max spec is not violated? The event should only last about 10ms. Thanks! Russell

  • Resolved

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

• TPS3897: Vcc and Vsense

  

  tateo yamashiro

  Resolved

  Part Number: TPS3897 Hi, We got a question from the customer about TPS3897. Could you help us? [Question] Are there any voltage level requirements between Vcc and Vsense? They are concerned whether Vs voltage allows to exceed Vcc voltage, or not. Best Regards…

  • Resolved

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

• TPS3897: The variation of the reset delay time

  

  tateo yamashiro

  Resolved

  Part Number: TPS3897 Hi, We got a question from the customer about TPS3897. Could you help us? [Question] How should we estimate the variation of the reset delay time? We assume the delay time is determined by I(ct), V(ct), C(ct), and 40us. Therefore we…

  • Resolved

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

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