• TPS3820-Q1: TPS3820 Delay after MR output

  

  SAMUEl LACHE

  TI Thinks Resolved

  Part Number: TPS3820-Q1 Tool/software: Hi, Datasheet of TPS3820-33 specifys that /RESET asserts "td" (time delay) after rising of VDD Is "td" also applied between rising of /MR and rising of /RESET? Thank you

  • 4 months ago
  • Power management
  • Power management forum

• TPS3820-Q1: TPS3820-Q1 problem

  

  Luis Carvajal

  TI Thinks Resolved

  Part Number: TPS3820-Q1 Other Parts Discussed in Thread: TPS3820 Tool/software: Dear experts, I'm trying to work with the watchdog TPS3820-Q1 and a NXP microcontroller. The circuit is shown in the figure below: The signal WDI_UC is a GPIO from the…

  • 8 months ago
  • Power management
  • Power management forum

• TPS3820-Q1: TPS3820-33QPDBVRQ1 Output signal

  

  LIN YU MING

  TI Thinks Resolved

  Part Number: TPS3820-Q1 Other Parts Discussed in Thread: TPS3820 Hi , When the PWM signal input the WDI pin, TPS3820-33QPDBVRQ1's WDO pin keep low. That is correct?

  • over 2 years ago
  • Power management
  • Power management forum

• TPS3820-Q1: the watchdog time out spec changed after high temperature test

  

  Aki Li

  Part Number: TPS3820-Q1 Tool/software: My customer reported an urgent issue that they found TPS3820-Q1's t tout (Watchdog time out) changed permanently after they implemented the high temperature test (100 degree). In the below waveform, reset was triggered…

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

• TPS3820-Q1: WDO pin function

  

  Kevin Huang8

  TI Thinks Resolved

  Part Number: TPS3820-Q1 Other Parts Discussed in Thread: TPS3820 Hi Team, The figure below shows the circuit and measurement waveform of TPS3820, and the questions are as follows: 1. When the WDI pin has PWM input, the output voltage of the WDO pin…

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• TPS3820-Q1: DWI = High when /RESET = Low

  

  Yuta Nishie

  Resolved

  Part Number: TPS3820-Q1 Other Parts Discussed in Thread: TPS3820 Hi, My question is about TPS3820(non-Q1). If DWI is fixed at High when/RESET=Low(Active), is there a problem with the device? I think there is no problem, is this correct? Best Regards…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

• TPS3820-Q1: /RESET series resistor setting

  

  Kevin Huang8

  TI Thinks Resolved

  Part Number: TPS3820-Q1 Hi Team, Need suggested /RESET series resistor circuit/resistance value for reference. In addition to the MCU, /RESET also control the Q8 transistor, is the I/O current sufficient for resistor matching? resistor how to adjust…

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• TPS3820-Q1: Difference between TPS3820-33QDBVRQ1 and TPS3820-33QPDBVRQ1

  

  Rory Wu

  Resolved

  Part Number: TPS3820-Q1 Hi Team, May I know detail difference between TPS3820-33QDBVRQ1 and TPS3820-33QPDBVRQ1, it should be in the tape and real package size in the datasheet? Any other difference from technical aspect? Thanks. BR, Rory

  • Resolved

  • over 3 years ago
  • Power management
  • Power management forum
Answered

• TPS3820-Q1: difference between the -50QDBVRQ1 and the -50DBVRQ1G4

  

  Andreas Brugger

  Resolved

  Part Number: TPS3820-Q1 Dear TI team, can you please tell me the difference between the TPS3820-50 Q DBVRQ1 and the TPS3820-50DBVRQ1 G4 Thanks in advance, Andreas

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

• TPS3820-Q1: Reset pin malfunctions

  

  Sam Sun

  TI Thinks Resolved

  Part Number: TPS3820-Q1 Other Parts Discussed in Thread: TPS3820 Hi, This was used for a mass production design. When applied to new solutions, the feed dog Pulse width change From 10ms to 7ms，But the tw Pulse width at WDI is 100ns in datasheet，7ms…

  • over 3 years ago
  • Power management
  • Power management forum

Didn't find what you are looking for? Post a new question.