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Showing 13 results View by: Thread Post Sort by
  • Arie Li
    Arie Li
    • 5 months ago
    • Power management
    • Power management forum

    TPS3851-Q1: watchdog timeout

    Part Number: TPS3851-Q1 Hi experts, My customer set the watchdog timeout of TPS3851-Q1 as 200ms with below configuration(CWD pulled up to VDD through 10k pullup resistor). In theory, if there is no WDI signal, the WDO timeout should be 200ms, but customer...
  • Abhinav.Sharma
    Abhinav.Sharma
    • 5 months ago
    • Power management
    • Power management forum

    RE: TPS3851-Q1: TPS3851-Q1 naming difference

    Hi William, The device nomenclature is shown in section 11 and pictured here: Thanks, Abhinav.
  • hideyuki sakai
    hideyuki sakai
    • over 1 year ago
    • Power management
    • Power management forum

    TPS3851-Q1: SET1 & WDI Pin Current Definitions

    TI Thinks Resolved
    Part Number: TPS3851-Q1 Dear, Sir. My customer is considering to apply TPS3851-Q1 for their system. At this time, they are asking about the current definition for SET1 $ WDI pins, how much? On the datasheet, I can see the low # high level threshold...
  • Yoshiki Ochi
    Yoshiki Ochi
    • 4 months ago
    • Power management
    • Power management forum

    RE: TPS3850-Q1: Does it have standard watchdog option?

    Hi Abhinav-san, Thank you for your comment. TPS3851-Q1 does not have OV monitoring though I would like to monitor not only UV but also OV. Do you have any options to achieve it? Regards, Ochi
  • Shinji Tsuji
    Shinji Tsuji
    • over 1 year ago
    • Power management
    • Power management forum

    TPS3851-Q1: How much is the Maximum VOL at VDD=3.3V?

    TI Thinks Resolved
    Part Number: TPS3851-Q1 Hi team, I would like to know the maximum VOL of TPS3851G33EQDRBRQ1 at VDD=3.3V. VOL maximum is specified at VDD=5.0V and Ireset=3mA and is 0.4V. Since the VIL max of the target IC's reset pin is 0.35V, I would like to...
  • Akihisa Tamazaki
    Akihisa Tamazaki
    • over 1 year ago
    • Power management
    • Power management forum

    TPS3851-Q1: TPS3851-Q1 maximum time from VPOR to RESET(Low)

    • Resolved
    Part Number: TPS3851 - Q1 Hello team, I received the question from the customer about TPS3851 - Q1
  • Abhinav.Sharma
    Abhinav.Sharma
    • 3 months ago
    • Power management
    • Power management forum

    RE: TPS3850: Need supervisor like TPS3850H18 but with 5s reset delay (reset asserted time)

    Hi Jim, So looking at the MAX device, it seems that they can theoretically support a large delay like 5s, but we rarely see requirements for that long delay. Even in their graph for reset delay vs capacitance, the maximum they show is about 2s. I think...
  • Renan Santos Adriano
    Renan Santos Adriano
    • over 1 year ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum

    RE: TINA/Spice/TPS3851-Q1: TINA Reference Design

    Hi Herman, Thank you for this response. Regards, -Renan
  • Michael_DeSando
    Michael_DeSando
    • over 1 year ago
    • Power management
    • Power management forum

    RE: TPS3850-Q1: Vsense : 3.7 - 4.1V, standard watchdog timer

    Shiji, You are correct that the accuracy will decrease by using an external resistor to change the threshold. Depending on the resistor values you choose, there is tradeoff between accuracy and Iq. The calculation for calculating the new sense threshold...
  • Ryan Eslinger
    Ryan Eslinger
    • over 2 years ago
    • Power management
    • Power management forum

    RE: TPS7B63-Q1: Watchdog window time after fault

    Hi Wentao, My understanding of your application is that you want a watchdog period of 35 ms but want to adjust the time that the watchdog takes to reinitialize. I am not aware of a single chip solution for this application; however, a standalone watchdog...
>

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