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  Zirui Su

  • 3 days ago
  • Power management
  • Power management forum

  TPS3840-Q1: What is the start up current for it

  Part Number: TPS3840-Q1 Hi, The customer said that the start up current of TPS3840Q1 was too large in the design, and 800K resistors need to be connected in series in the designed signal link, but TPS3840Q1 cannot start to work with the 800K resistors;...
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  Tamas Fenyvesi

  • 2 months ago
  • Power management
  • Power management forum

  TPS3840-Q1: failure mode distribution

  • Resolved

  Part Number: TPS3840 - Q1 Hi, FIT rate of TPS3840DLxx seems 0.4. Can you please tell me something
• 

  Tamas Fenyvesi

  • 2 months ago
  • Power management
  • Power management forum

  TPS3840-Q1: understanding CT pin

  • Resolved

  Part Number: TPS3840 - Q1 Hi, datasheet 8.2, functional block diagram seems weird: Nothing can pull
• 

  Shinji Tsuji

  • 4 months ago
  • Power management
  • Power management forum

  TPS3840-Q1: VOL and leakage

  TI Thinks Resolved

  Part Number: TPS3840-Q1 Hi team, I am designing MCU reset circuit using TPS3840-Q1 as below. VDD = button battery <4.5V Vthreshold = 2.2V V pullup = 1.8V Pull up register value = 10kohm Output I/F = Active Low Open Drain 1. Could you...
• 

  Abhinav.Sharma

  • 6 months ago
  • Power management
  • Power management forum

  RE: TPS3840-Q1: Clarification of behavior of supply current at point of transition

  Hi Brandon, As far as I am aware, the data is taken directly from test and implemented into datasheet graphs: the graphs should represent the exact behavior we noticed in testing for this device. That being said, it is possible that the transients noticed...
• 

  Roy Chou1

  • 9 months ago
  • Power management
  • Power management forum

  TPS3840-Q1: 2s dection and 8s delay

  Part Number: TPS3840-Q1 Hi Team, I know our reset IC could achieve delay function but customer would like to have below extra function, do you have any idea how to achieve or any IC could meet the requirement? Regards, Roy
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  Koji Hayashi92

  • 10 months ago
  • Power management
  • Power management forum

  TPS3840-Q1: Open and Short behavior

  • Resolved

  Part Number: TPS3840 - Q1 Hi TI-team Please tell me the behavior of IC when each pin is open
• 

  Koji Hayashi92

  • over 1 year ago
  • Power management
  • Power management forum

  TPS3840-Q1: Is there a possibility that tP_HL is max and tD is min ?

  TI Thinks Resolved

  Part Number: TPS3840-Q1 Hi TI-team Is there a possibility that tP_HL is max and tD is min ? Since tP_HL and tD are variations in the internal circuit of the IC, are you sure that there is a correlation in the relationship between min and max ? ...
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  Koji Hayashi92

  • over 1 year ago
  • Power management
  • Power management forum

  TPS3840-Q1: ABOUT MIN RESET TIME DELAY

  • Resolved

  Part Number: TPS3840 - Q1 Hi TI-team My customer want to know min reset time delay. Please let me
• 

  Casey McCrea

  • 9 months ago
  • Interface
  • Interface forum

  RE: DS90UB948-Q1: PDB discharge

  Hello Roy, I mean you could use a supervisor IC to control the PDB pin and make sure it is only asserted during valid power rail conditions. TI provides supervisor ICs with push-push type outputs which can actively pull the pin low when supply voltage...

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