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Showing 43 results View by: Thread Post Sort by
  • RE: TPS7A78: Inrsuh Current for TPS7A78

    Stephen Ziel
    Stephen Ziel
    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"…
    • 29 days ago
    • Power management
    • Power management forum
  • TPS7A78: LDO_IN max input capacitor value?

    AnBer
    AnBer
    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…
    • 21 days ago
    • Power management
    • Power management forum
  • TPS7A78: TPS7A7833

    Christoph Tutschner
    Christoph Tutschner
    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…
    • 2 months ago
    • Power management
    • Power management forum
  • TPS7A78: EMC - Conducted Emission EN 55014-1 Cond.

    Christoph Tutschner
    Christoph Tutschner
    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…
    • 2 months ago
    • Power management
    • Power management forum
  • TPS7A78: PSPICE model

    Charles Zhang1
    Charles Zhang1
    Part Number: TPS7A78 Hi Team, Do we have PSPICE model for TPS7A78? Thanks. Regards, Charles
    • 6 months ago
    • Power management
    • Power management forum
  • Answered
  • TPS7A78: PFD top resistor divider

    Koji Ikeda
    Koji Ikeda
    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
    • 6 months ago
    • Power management
    • Power management forum
  • TPS7A78: the non-complet TPS7A78xx variant

    zbyno brudny32
    zbyno brudny32
    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…
    • over 1 year ago
    • Power management
    • Power management forum
  • TPS7A78: SCIN pin as voltage source

    May
    May
    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…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • TPS7A78: use Pin SDIN of TPS7A7833 as a second DC_Voltage source

    Christoph Tutschner
    Christoph Tutschner
    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
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • RE: TPS7A78: TPS7A78

    Jason Song
    Jason Song
    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…
    • over 1 year ago
    • Power management
    • Power management forum
>

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