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  • RE: TPS7A78: Inrsuh Current for TPS7A78

    The simulation has SCIN drooping during the relay event. LDO_IN is unable to maintain headroom to the output, and the LDO_OUT enters dropout. At 0.865 seconds into the simulation the 3.5V UVLO is tripped, turning off the LDO. 3.5V is the "worst case"…

  • TPS7A78: LDO_IN max input capacitor value?

    TI Thinks Resolved
    Part Number: TPS7A78 Team, The TPS7A78 is used for a load that takes 80mA on average, but also 280mA for peaks of about 500µs. Since the TPS7A78 limits the output current, a 4700µF electrolytic capacitor was placed at the LDO_out. On LDO_in a capacitor…

  • TPS7A78: TPS7A7833

    Part Number: TPS7A78 Hi, another Question regarding TPS7A78: Is it possible to bridge Charge-Pump? Or asked in another way: Can I provide external Input-Voltage for VLDOIN and what is the highest voltage I can apply? I want to use the Voltage of VSCIN…

  • TPS7A78: EMC - Conducted Emission EN 55014-1 Cond.

    Part Number: TPS7A78 Hello we have problems wiith EMC Conducted Emission EN 55014-1 Cond. with TPS7A78. We have the following component values: Rs = 330R Cs = 470nF CScin = 470uF + 180uF Csc1 = 1uF Csc2 = 1uF CLDOIn = 10uF To reach compliance we have…

  • TPS7A78: PSPICE model

    Part Number: TPS7A78 Hi Team, Do we have PSPICE model for TPS7A78? Thanks. Regards, Charles
    • Answered

  • TPS7A78: PFD top resistor divider

    Resolved
    Part Number: TPS7A78 Hello Support team, Datasheet recommend PFD top resistor divider up to 200k ohm, but, the value on EVM is 2.21Mohm. Does EVM have wrong design? Please clarify it. Thanks, Koji Ikeda
    • Resolved

  • TPS7A78: the non-complet TPS7A78xx variant

    Part Number: TPS7A78 Hi friends, I have experimented with new concepts for the conversion HV-AC/DC (110/230Vac --> 3Vdc) please see> https://www.researchgate.net/publication/357877607_The_Inductor-less_line_supply_for_MCU_-realizations Mz question…

  • TPS7A78: SCIN pin as voltage source

    TI Thinks Resolved
    Part Number: TPS7A78 Hi, Customer want to confirm it is possible to use SCIN pin as voltage source, please see details below. " is it possible to use V_SDIN Pin of TPS7A7833 as a second DC-Voltage source? We want to switch a latched Relay with 12V…
    • Answered

  • TPS7A78: use Pin SDIN of TPS7A7833 as a second DC_Voltage source

    Resolved
    Part Number: TPS7A78 Hello @all is it possible to use SDIN Pin of TPS7A7833 as a second DC-Voltage source? We want to switch a latched Relay with 12V or 6V for 20mseconds. (Current for 12V Relay:83mA, current for 6V Relay: 170mA) Do you think this is…
    • Resolved
    • Answered

  • RE: TPS7A78: TPS7A78

    Resolved
    Hi Y.Ottey, As discussed, "The voltage from AC+ to GND will have 30V max and AC- to GND will have 30V max, per the datasheet and the clearance needs to be set accordingly". When you mention input voltage, are you talking about the AC voltage…

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