• WEBENCH® Tools/TPS40400: Iout Calibration Issue

  

  liwei qi

  TI Thinks Resolved

  Part Number: TPS40400 Tool/software: WEBENCH® Design Tools I use the formula that IOUT_CAL_GAIN(trimmed) = IOUT_CAL_GAIN(untrimed) x [ (Iout2 - Iout1) / (Read_Iout2 - Read_Iout1) and IOUT_CAL_OFFSET = Iout3 - Read_Iout3. After calibra, our modules will…

  • over 2 years ago
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• RE: WEBENCH® Tools/TPS40400: Vout Calibration Function

  

  Peter James Miller

  liwei qi Have you had a chance to test this?

  • over 2 years ago
  • Power management
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Answered

• WEBENCH® Tools/TPS40400: Program process difference

  

  liwei qi

  Resolved

  Part Number: TPS40400 Tool/software: WEBENCH® Design Tools I want to use TPS40400 to replace TPS40401. About program process, do they have difference? where can i get the difference document? Thanks!

  • Resolved

  • over 3 years ago
  • Power management
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Answered

• WEBENCH® Tools/TPS40400: Vout and Vin Calibration Gain

  

  liwei qi

  Resolved

  Part Number: TPS40400 Tool/software: WEBENCH® Design Tools In datasheet, the vout and vin calibration have two parameter : GAIN and OFFSET. The gain unit is %. I don't know what's meaning. Is the calibration mode single-point? Do you have any…

  • Resolved

  • over 3 years ago
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Answered

• WEBENCH® Tools/TPS40400: Set IOUT_OC_FAULT and IOUT_CAL_GAIN unsucessfully

  

  liwei qi

  Resolved

  Part Number: TPS40400 Tool/software: WEBENCH® Design Tools use the GUI set IOUT_CAL_GAIN,IOUT_CAL_OFFSET and IOUT_OC_FAULT unsucessfully. The GUI dispaly"TPS40401 @ 127d: IOUT_OC_FAULT_LIMIT [0x46]: wrote 15.0 A [0xF81E] to the device and it was ACKed…

  • Resolved

  • over 3 years ago
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• TPS40400: tps40400 WPE bit of D0h

  

  luo luo2

  TI Thinks Resolved

  Part Number: TPS40400 Hi, for TPS40400 WPE bit of D0h, once set WPE bit to 1 and stored, does it mean that user can't never set WPE bit to 0 again?

  • over 3 years ago
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• TPS40400: FRA measurement

  

  Toshihiro Watanabe

  TI Thinks Resolved

  Part Number: TPS40400 Hello, We would like to do FRA measurement. We think feedback loop is removed then apply signal via resister Would you teach us how to apply the signal source for TPS40400 when FRA test? Best regards, Toshihiro Watanabe

  • over 3 years ago
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• Linux/TPS40400: How to recover from I2C SDA stuck low on TPS40400?

  

  Daniel Daniel26

  TI Thinks Resolved

  Part Number: TPS40400 Other Parts Discussed in Thread: TMS320DM8168 Tool/software: Linux Hello, Background: On our board we use TPS40400 buck controller as 1.1V source for the TMS320DM8168. The TMS320DM8168 processor controls TPS40400 via I2C bus (PMBus…

  • over 4 years ago
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Answered

• TPS40400: Potential Bootstrap Damage

  

  Ryan.Bishop

  Resolved

  Part Number: TPS40400 Hello, I am trying to troubleshoot a design where HDRV is not driving the high side FET. This is a 12V to 3.3V @ 5A rail. We are hypothesizing that the bootstrap circuitry is failing and that HDRV is not being supplied with adequate…

  • Resolved

  • over 3 years ago
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Answered

• TPS40400: TPS40400 Output Current Reporting Issue

  

  Red Yen

  Resolved

  Part Number: TPS40400 Hi I had one question about the output current report problem (not accurate) with the TPS40400. The test board is TPS40400EVM-351, therefore the current sense element is the inductor’s DCR. Please refer the inductor spec as…

  • Resolved

  • over 4 years ago
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