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  • TPS3899-Q1: Reset assertion duration and sense delay duration

    TI Thinks Resolved
    Part Number: TPS3899-Q1 Other Parts Discussed in Thread: TPS3422 , TPS3899 Tool/software: Hello, We are considering TPS3899-Q1 for our design. Our use case conditions are as follows: 1. If the push-button connected to sense pin is pressed for a duration…

  • TPS3899-Q1: TPS3899DL31DSERQ1

    TI Thinks Resolved
    Part Number: TPS3899-Q1 Hi Team, In our circuit design featuring the Voltage Supervisor ( TPS3899DL31DSERQ1 ), we've set the undervoltage threshold to 3.1V. However, during RF data transmission, the voltage drops below this threshold, triggering the…

  • TPS3899-Q1: Schematic ON/OFF section Review

    TI Thinks Resolved
    Part Number: TPS3899-Q1 Other Parts Discussed in Thread: TPS3899 Hello, Earlier we are using LTC2954CTS8-1#TRMPBF, Now we are planning to replace with TPS3899DL01DSERQ1. Could you please review the connection of power ON/OFF control IC TPS3899DL01DSERQ1…

  • TPS3899-Q1: Negative-going input threshold for adjustable sense threshold version

    TI Thinks Resolved
    Part Number: TPS3899-Q1 Are there minimum and maximum values for the Negative-going input threshold for adjustable sense threshold TPS3899DL01DSERQ1? The datasheet only specifies a typical value, which does not support calculation of upper and lower…
    • Answered

  • TPS3899-Q1: RESET pin is deasserted when VDD and SENSE are supplied by a positive pulse narrower than the duration of reset time set by CTR

    Resolved
    Part Number: TPS3899-Q1 Other Parts Discussed in Thread: TPS3899 Hi, In the datasheet of TPS3899-Q1, I don't understand Figure 7-3: 1. What is the meaning of "VDD=SENSE", is the two pins connect together? 2. Since the width of positive pulse on…
    • Resolved

  • TPS3899-Q1: Inquiry about RESEST pin operation in abnormal conditions

    TI Thinks Resolved
    Part Number: TPS3899-Q1 Hello, My customer considers using the TPS3899DL01DSERQ1 with the follwoing conditions. How does RESET# work when V1 power is shorted to GND or V1 power is not supplied due to a disconnection? Thank you. JH
    • Answered

  • TPS3899-Q1: PSpice Transient Model to this part

    Resolved
    Part Number: TPS3899-Q1 Hello, How can I get a PSpice Transient Model to this part? Thanks
    • Resolved
    • Answered

  • TPS3840-Q1: The test result of reset delay time don't match the calculation result

    Resolved
    Part Number: TPS3840-Q1 Other Parts Discussed in Thread: TPS3899-Q1 Hello TI team, Please help to clarify why the test result of reset time is lower than calculation result a lot. The IC we used is TPS3840DL29-Q1 (open drain and V_IT-=2.9V). I connected…
    • Resolved

  • TPS3899: About Rct(min) Rct(max) and tD(no cap,min)

    TI Thinks Resolved
    Part Number: TPS3899 Other Parts Discussed in Thread: , TPS3842 Hi I am caculate the range of the tD-SENSE (min) or tD (min) and the tD-SENSE (max) or tD (max) . I can not find the Rct(min) Rct(max) and tD(no cap,min) in the datasheet. Only typical…

  • RE: TPS3890-Q1: a supervisor or pushbutton controller

    Hi Vitaliy, The TPS3899 has a programmable sense delay which will require the SENSE pin to stay below threshold longer than tsense programmed before RESET goes low. For this device the maximum programmable time is 6.5s. https://www.ti.com/product…

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