• TPS22971: Rise time when VIN changes

  

  user5143197

  TI Thinks Resolved

  Part Number: TPS22971 Hi, Team I designed a power circuit for SD CARD with TPS22971 like figure. The circuit operates as the following: step1. Enable TPS22971 and Vout rises to VIN(3.3V) step2. VIN falls from 3.3V to 1.8V. step3. VIN rises to 3…

  • over 5 years ago
  • Power management
  • Power management forum
Answered

• TPS22971: Maximum rise time

  

  Kuramochi Tadahiko

  Resolved

  Part Number: TPS22971 Hi, Is there recommended maximum turn-on rise time or CT capacitance? Best Regards, Kuramochi

  • Resolved

  • over 5 years ago
  • Power management
  • Power management forum
Answered

• TPS22971: Automotive qualified version of TPS22971

  

  Ryuji

  Resolved

  Part Number: TPS22971 Other Parts Discussed in Thread: TPS22918-Q1 , , TPS22966-Q1 , TPS22966 Hello, Are there any plan to release of TPS22971-Q1 ? Our customer request the power switch which has following specifications. Vin : under 1V to 3.5V Iout…

  • Resolved

  • over 7 years ago
  • Power management
  • Power management forum

• TPS22971: Is CT 0pF (floating) for 1.05 Vin rails and a fast turn-on time?

  

  Lauren Mayfield

  TI Thinks Resolved

  Part Number: TPS22971 Hi team, My customer has a question TPS22971- To double check, when it says the slew rate capacitor CT is 0 pF that means the pin should be left open and floating? for Vin = 1.05V rails and a fast turn-on time? Also …

  • over 4 years ago
  • Power management
  • Power management forum
Answered

• TPS22971: Behaviour of PG(OOD)

  

  Peter Kaeser

  Resolved

  Part Number: TPS22971 Dear Forum I have a whole cascade of high side switches in my design and am somewhat stuck with the PG output of TPS22971 Now, I have the following situation VIN1/2 = 0V (i.e. the input voltage is not yet enabled), ON (PGOOD9…

  • Resolved

  • over 5 years ago
  • Power management
  • Power management forum

• TPS22971: Slew rate at turn off of TPS22971

  

  user4699602

  TI Thinks Resolved

  Part Number: TPS22971 Hi We got a question from customer about TPS22971. They desire slew rate 25mV/μs at turn off. How is the slew rate determined at turn off? Thanks. Sincerely.

  • over 7 years ago
  • Power management
  • Power management forum
Answered

• TPS22971: Calculating tON with formula 2

  

  franziskus

  Resolved

  Part Number: TPS22971 Team, the switching characteristics in our datasheet state tON values for certain CT value test conditions. My customer is struggling to calculate these values using formula 2. Example using VIN = 3.6V CT = 1000pF Using…

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum

• TPS22971: What's the pull down resistance when VIN = 1.05V

  

  Shaquille Chen

  TI Thinks Resolved

  Part Number: TPS22971 Hi team, As you know , TPS22971 been use in intel VCCST rail. Intel request <=300ohm during discharge. Our datasheet just show 3.6V and 0.65V. What's the pull down resistor at 1.05V? Thanks Shaq.

  • over 6 years ago
  • Power management
  • Power management forum

• TPS22971: Input capacitance guideline when load switch turn on

  

  Toshihiro Watanabe

  TI Thinks Resolved

  Part Number: TPS22971 Other Parts Discussed in Thread: TINA-TI Hello, In below post, adding input capacitor of TPS22971 helps the voltage drops due to inrush current when trun-on. Is there any guidance how much input capacitor would be good? I think…

  • over 6 years ago
  • Power management
  • Power management forum

• TPS22971: Is these circuit can get linearly rampup waveform?

  

  Toshihiro Watanabe

  TI Thinks Resolved

  Part Number: TPS22971 Other Parts Discussed in Thread: TPS27081A Hello, We are thinking to use load switch as below circuit. They are using TPS27081 but change from TPS27081 to TPS22971. In TPS22971 datasheet, rampup waveform is smoothly(linearly…

  • over 6 years ago
  • Power management
  • Power management forum

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