• TPS54329: Questions of TPS54329

  

  Jimmy Lai

  TI Thinks Resolved

  Part Number: TPS54329 Dear Team, There were abnormalities in three samples produced by the customer. The EN pin was normally high, but the output was only 1.2V. Later, after replacing U5 TPS54329, all three units were normal and the output voltage was…

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

• TPS54329: Questions of TPS54329

  

  Jimmy Lai

  Part Number: TPS54329 Dear Team, Below is the circuit we used for the 3.3V power rail. Concerning the soft-start time, we modified CB39 from 3300pF to 470pF as part of power sequence optimization. However, after this change, several units failed to boot…

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

• TPS54329: TPS54329 OCP dicussion

  

  Ben Kuo

  TI Thinks Resolved

  Part Number: TPS54329 Dear team, We are testing OCP function of TPS54329 and find PWM is still there once current limit be trigger. But output voltage drop to zero during OCP. According to datasheet, device will turn on low-side FET until no over current…

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

• TPS54329: The tps54329 has a return channel during power on

  

  user4838693

  TI Thinks Resolved

  Part Number: TPS54329 We use tps54329 to output 5V voltage, but when testing the power on waveform, we find that there is a return channel. Excuse me, how can we solve this problem? The design drawing is as follows:

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

• TPS54329: replace device for TPS54339

  

  Henry Wang3

  TI Thinks Resolved

  Part Number: TPS54329 Other Parts Discussed in Thread: TPS54239 , TPS54339 , TPS54327 , , TPS54328 Hi Sir, My customer would like to use TPS54329DDAR to replace TPS54339DDAR since the device shortage. TPS54239 is an older device than TPS5433, right? The design…

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

• TPS54329: will the power loss become larger when temperature increases?

  

  Miranda Gu

  Resolved

  Part Number: TPS54329 Hi team, My customers are asking, will the power loss of TPS54329 become larger when temperature increases?

  • Resolved

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

• TPS54329: What is the main reason to define -0.3V as negative voltage limitation?

  

  Jason Dai

  TI Thinks Resolved

  Part Number: TPS54329 Hello E2E, What is the main reason to define -0.3V as negative voltage limitation? Sincerely, Jason

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

• TPS54329 cannot work at -35C temperature

  

  Howard Zou

  Resolved

  Part Number: TPS54329 Hi, My customer is testing TPS54329 to replace BD9329AEFJ. The schematic is as below: the parameters are commented in the red box. Input is 12V, output is 5V,2W. They device can't work at -35C temperature. But the device can…

  • Resolved

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

• TPS54329: Vin close to min

  

  Viktorija Cecil

  TI Thinks Resolved

  Part Number: TPS54329 Team, Customer is using TPS54329 in their system, and powering it up with 12V. They would like to improve efficiency, and ease the layout by using 3.3V or 5V Vin, however datasheet says >4.5V is needed, and customer's experience…

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

• TPS54329: high side mosfet voltage

  

  vivian wang

  Resolved

  Part Number: TPS54329 Hi because the MOSFET are in the converter, the spec only show the SW(low side MOSFET) max voltage=22V. We want to know the high side MOSFET max voltage=? Thank you!

  • Resolved

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

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