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  • TPS2121EVM-023: Inrush Current Shut Down

    Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2121 Hello, Currently I am performing tests on the TPS2121 EVM and have encountered an error with inrush current. When I have a load that is drawing around 2A of current the device cannot…

  • TPS2121EVM-023: Output drops to zero and stays zero when the input is switching

    Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2121 Hi, I am using TPS2121 EVM board to test my use case and the resistor change is listed below. When there is no load at the output the switchover seems working fine and no problem at…
    • Answered

  • TPS2121EVM-023: TPS2121 – Inrush current question

    Resolved
    Part Number: TPS2121EVM-023 We use TPS2121EVM to test the inrush current. We find the peak current will limit at 1.135A, not our OCP setting 4.5A. Below shows the test waveform with test condition. Please have your advice. Thanks BR, Gary
    • Resolved
    • Answered

  • TPS2121EVM-023: TPS2121 – Inrush current question

    Resolved
    Part Number: TPS2121EVM-023 We use TPS2121EVM to test the inrush current. We find the peak current will limit at 1.135A, not our OCP setting 4.5A. Below shows the test waveform with test condition. Please have your advice. Thanks BR, Gary
    • Resolved

  • TPS2121EVM-023: TPS2121 - Output power drop to 0V

    TI Thinks Resolved
    Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2121 , , LM5116 , TPS61230 Hi TI team, I choose TPS2121 as a power switch for my Supercap Power Backup solution. Then, I buy one set TPS2121EVM-023 for testing before releasing the schematic…
    • Answered

  • TPS2121EVM-023: Voltage and Current observed Vin1 when voltage is applied at Vout

    Resolved
    Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2121 , TPS2120 , TPS2115A , TPS2114A Use case: Vin1 vs Vin2 prioritizing Vin1. Steps to Reproduce: 1. Supply both VIN1 and VOUT with 5V 2. Disconnect supply for VIN1. Observation: 1.VIN1 will…
    • Resolved

  • TPS2121EVM-023: Voltage drop improvement

    TI Thinks Resolved
    Part Number: TPS2121EVM-023 Hi Team Would you advise that When switching the power supply with TPS2121EVM-023, a voltage drop of Vout is seen. I think that the capacity of the capacitor is sufficient, but is it possible to eliminate this voltage drop…
    • Answered

  • TPS2121EVM-023: Power interruption of TPS2121

    Resolved
    Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2121 Dear TI teams. Would you like to give me advice about TPS2121. When switching voltage, It occurs voltage drop like a pictures. Does not occur when there is no load Vin1 and Vin2 are 8V…
    • Resolved
    • Answered

  • TPS2121EVM-023: About TPS2121 standby current

    Resolved
    Part Number: TPS2121EVM-023 Other Parts Discussed in Thread: TPS2115A Hello Sir, Our design is INx USB 5V, INy Li-battery 3.8(typ) May I know how to enter standby to see standby current 25uA ? Many thanks !
    • Resolved

  • RE: TPS2121: Help with TPS2121 for Automatic Switchover Between Two 5-V Supplies

    Hi Mikhail, "Optimum resistor" values are subjective and depend on the application and the switchover behavior that is used. I highly recommend using resistors in the 10-100 Kohm range to set the voltage values at OV1,OV2,PR1 and CP2. Looking…

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