• TPS40422: About crossover frequency pass criterion in the Bode plot measurement

  

  April Chou1

  TI Thinks Resolved

  Part Number: TPS40422 Hi Experts, I have seen some documents that will define the pass criterion of the crossover frequency(Fco), for example, Fsw/30<Fco<Fsw/5. I want to know whether this pass criterion is necessary? In my result, both the gain margin…

  • 16 days ago
  • Power management
  • Power management forum
Answered

• TPS40422: TPS40422/25/28 SMB_ALERT status

  

  Neo.Wang

  Resolved

  Part Number: TPS40422 Hi TI Expert, what's the status of SMB_ALERT status on TPS40422/25/28? is it open drain and need external pullp-up? i can't find the description from datasheet. Thanks.

  • Resolved

  • 8 months ago
  • Power management
  • Power management forum

• TPS40422: Converting XML to CSV format using Fusion GUI for TPS40422

  

  Madhura Gogate

  TI Thinks Resolved

  Part Number: TPS40422 For TPS40422, In Fusion GUI, XML files needs to be converted to CSV files. Could you please share the procedure for the same? Is there any method to do the conversion offline? TPS40422

  • 7 months ago
  • Power management
  • Power management forum

• TPS40422: Power supply with TPS40422 short currnet test issue

  

  HC Chen

  TI Thinks Resolved

  Part Number: TPS40422 Hi PS: we set the per phase current limit 22A, so total current limit is 44A. Why the Short Then On test the current is so match high(85A) than OCP and On Then Short test? Why the negative voltage spike of -1.4V for ~60us, does…

  • 10 months ago
  • Power management
  • Power management forum
Answered

• TPS40422: Could you review schematic for TPS40422?

  

  Downey Kim

  Resolved

  Part Number: TPS40422 Other Parts Discussed in Thread: CSD87350Q5D , TPS40322 Hi TI experts, My customer has requested a SCH review for TPS 40422. For external fet, CSD87350Q5D was applied. Attached the schematic and inductor datasheet. xcu_power_sch.pd…

  • Resolved

  • 11 months ago
  • Power management
  • Power management forum

• TPS40422: Default value of PMBus page

  

  Shenhua Zhang

  TI Thinks Resolved

  Part Number: TPS40422 Customer would like to know about TPS40422, do we have default value for PMBUS page? For example, when we read voltage value without writing into 'page', is it 'page 0' by default?

  • 9 months ago
  • Power management
  • Power management forum

• TPS40422: Overcurrent protection produces negative voltage behavior

  

  Kao Mick

  Part Number: TPS40422 HI SIR We use TPS40422 to design a dual-phase synchronous output 0.88V power supply, the specifications are as follows Vin:12V Vout:0.88V Iout:20+20A Fsw:500kHz Lout:0.36uH *2 phase When we test the short circuit, the output…

  • 10 months ago
  • Power management
  • Power management forum
Answered

• TPS40422: PMBus activation timing

  

  TI_pwr_usr

  Resolved

  Part Number: TPS40422 From power up (VDD applied) when is SMBus interface become available to accept master access?

  • Resolved

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

• TPS40422: May I have some confirming item for TPS40422 application ?

  

  TAlex Wu

  Resolved

  Part Number: TPS40422 Dear SIR: Good day!! May I have some confirming item for TPS40422 PMBUS interface application ? We can not found any PMBUS in our MB (Chip ,....),But ,We have found SMBUS interface . We want to know ,Can we connect SMBUS to TPS40422…

  • Resolved

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

• TPS40422: TPS40422 support Quick output discharge feature ?

  

  Dilip Namdeo Mohol

  TI Thinks Resolved

  Part Number: TPS40422 Hi , Can TPS40422 support quick output discharge feature ? ( Turn ON bottom FET during turn ON to discharge output voltage before TOP FET turns ON.

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

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