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  • TPS3813-Q1: The watchdog fails to be fed

    Part Number: TPS3813-Q1 Hi Team, The watchdog fails to be fed. Could you kindly give a hand? Figure 1 is the signal that cannot be started. The boot dog feeding interval is 10ms. Before entering the app, the boot sends a dog feeding signal, resulting…
    • Answered

  • TPS3813-Q1: WDI related

    Resolved
    Part Number: TPS3813-Q1 Hi expert, My customer meet a question during testing. The description as below. Window and boundary time configuration: WDT and WDR short to Ground Question: You can see below picture. They set Tp to ~100ms, there have two different…
    • Resolved

  • TPS3813-Q1: Reset pin issues for TPS3813-Q1

    TI Thinks Resolved
    Part Number: TPS3813-Q1 Hi TI expert If the WDI signal remains at a fixed level, the reset pin will output a reset signal and the high level will not change? Or according to the internal timer setting, output reset signal regularly? Best regards, Th…

  • TPS3813-Q1: TPS3813-Q1:

    TI Thinks Resolved
    Part Number: TPS3813-Q1 Hi, We are using the Watchdog Part TPS3813-Q1, and the WDT and WDR are connected to '0'V and per the specification the RESET shall go low when the WDI input does not refresh between 9.46msec and 200msec. However we are observing…

  • TPS3813-Q1: Reset remain active when watchdog is abnormal?

    TI Thinks Resolved
    Part Number: TPS3813-Q1 Hi Expert, My customer wants to use TSP3813-Q1, and wants to verify operation of this device. Will TPS3813-Q1 RESET pin remain active(stay low) when the WDI is abnormal like missing? or would it assert a reset for td = ~25ms and…

  • TPS3813-Q1: device behavior in WDR or WDT open case

    TI Thinks Resolved
    Part Number: TPS3813-Q1 Hi team, My customer is using TPS3813-Q1 with 220pF of C(ext) and WDR=5V and, now analyzing PinFMEA by themselves. There are 2 questions. 1) What would be happen if WDR become open accidentally? 2) What would be happen if WDT become…

  • TPS3813-Q1: Failure modes and fit values

    TI Thinks Resolved
    Part Number: TPS3813-Q1 Dear Mrs. or Mr., in our system we use the component TPS3813K33QDBVRQ1 (TPS3813-Q1). Our system has to comply with ISO 26262, so it is necessary to calculate different hardware metrics. For the calculation of the hardware metrics…

  • TPS3813-Q1: Guaranteed reset behavior when kicking faster than tboundary,min?

    TI Thinks Resolved
    Part Number: TPS3813-Q1 In the datasheet revision F for TPS3813-Q1 section 7.3.1 the following is stated: We understand perfectly fine how to kick the watchdog to keep it from outputting a low level on the RESET output. Our concern is the shaded area…
    • Answered

  • TPS3813-Q1: TPS3813 floating WDI pin / / disable watchdog during programming phase

    Resolved
    Part Number: TPS3813-Q1 Other Parts Discussed in Thread: TPS3850 , TPS3828 , TPS3824 , TPS3820 , TPS3823 , TPS3851 Dear Support Team, my customer is considering TPS3813-q1; in order to guarantee the processor boot it is mandatory to disable the watchdog.…
    • Resolved
    • Answered

  • TPS3813-Q1: Manufacturing Tolerance Limit of Min and Max value related to Window Frame

    Resolved
    Part Number: TPS3813-Q1 Hello Support, For WDR=WDT=0V, the value of WINDOW FRAME tolerance is 0.2 to 0.3 sec due to manufacturing as well as temperature/voltage variations across various sample devices. Question is, this statistical measurement of va…
    • Resolved

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