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  • TPS3852-Q1: WDO and WDI question

    TI Thinks Resolved
    Part Number: TPS3852-Q1 Other Parts Discussed in Thread: TPS3852 , Hello, I received the TPS3852G33DRBR today and tested it on our circuit, but it didn’t work as expected. The WDO works as expected if WDI stays high. I see the pulldowns every ~8…

  • TPS3852-Q1: Watchdog Disabled During Initialization Period

    TI Thinks Resolved
    Part Number: TPS3852-Q1 Other Parts Discussed in Thread: TPS3890-Q1 , TPS3852 , TPS3890 Hi Expert, Our customer uses TPS3852-q1 in their project. But they don't use TPS3890-q1, which is suggested in datasheet as below. The SET1 pin is directly tied to 3…
    • Answered

  • TPS3852: Difference between TPS3852 and TPS3851

    Resolved
    Part Number: TPS3852 Other Parts Discussed in Thread: TPS3851 Dear Teams, My customer wants to change from TPS3851 to TPS3852. However, they found that TPS3852 actually is a window watchdog timer, while TPS3851 is an independent watchdog timer. Refer…
    • Resolved
    • Answered

  • TPS3852: flexibility in placing thermal pad vias

    Resolved
    Part Number: TPS3852 My customer is having some manufacturing issues with placing vias underneath the body of the part and is asking whether the recommended vias could be either eliminated or moved away outside the perimeter of the footprint. Is the thermal…
    • Resolved

  • TPS3852-Q1: Minimum pulse width

    TI Thinks Resolved
    Part Number: TPS3852-Q1 Other Parts Discussed in Thread: TPS3852 , TPS3703 , TPS3702 , LM4041-N , LM2903-N I have a question about the WDI minimum pulse duration spec. Is it referring to 't' or 'd' in the picture below:
    • Answered

  • TPS3852-Q1: Does the device have clamping input voltage protection

    Resolved
    Part Number: TPS3852-Q1 Hi team I would like to ask that does the TPS3852Q1 have the clamping input voltage protection? Is there any design recommendation for the set1 enable pin if customer want to use the ACC ignition point?
    • Resolved
    • Answered

  • TPS3852-Q1: Schematic review and working current

    Resolved
    Part Number: TPS3852-Q1 Hi team Need your help about 2 questions: 1. Please help to check the schematic whether it is ok: (could the reset pin be configured like this) 3852SCH.pdf 2. What are the normal operating current and quiescent current? What value…
    • Resolved
    • Answered

  • TPS3852-Q1: CWD cap value for 0.5Hz WDI

    Resolved
    Part Number: TPS3852-Q1 In our application, WDI is 0.5Hz (1s tick - 1s on & 1s off), so to use TPS3852-Q1, the selected cap value is 33nF (based on below formula). Need TI's confirmation to ensure this configuration (33nF) will work for 0.5Hz WDI.…
    • Resolved
    • Answered

  • TPS3852: WahctDog circuit "TPS3851H33EDRBR" change to "TPS3852H33DRBT" question.

    Resolved
    Part Number: TPS3852 Hi Teams, Below is our currently WahctDog "TPS3851H33EDRBR" Circuit and Behavior: - After ~56.68s no received the WDI single then Reset#/WDO# will go low to the EC25 module(RESET_N). - Every 30s WDI send signal to reset watchdog…
    • Resolved

  • TPS3852-Q1: TPS3852-Q1

    TI Thinks Resolved
    Part Number: TPS3852-Q1 Hello, could you give me the input impedance/resistor of input SET1 ? Thanks regards

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