• LM5051：Vcc Pin Design Questions

  

  Allen yang

  TI Thinks Resolved

  Part Number: LM5051 Hi Team, Is the following design feasible? How should the LINE pin be connected? Will the VCC voltage decrease in this design? How should R_BIAS be calculated? Vin : 9.6V~60V R_BIAS：4.32k ohm ZD：11V

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

• LM5051: INN Voltage Stress

  

  Francis Jiang

  Resolved

  Part Number: LM5051 Tool/software: Hi Team, Customer asked why INN to INP/VSS voltage stress needs 103V? Could you please help answer here? Thanks in advance. BRs, Francis

  • Resolved

  • 2 months ago
  • Power management
  • Power management forum

• LM5051: Line in connection when using VCC

  

  Oba

  TI Thinks Resolved

  Part Number: LM5051 Hello, When VCC is biased externally because the bus voltage could be less than 36V, is it OK to leave LINE pin floating? In Figure 29 and 30 in the datasheet, LINE pin is floating. I just want to confirm if this configuration is OK…

  • 3 days ago
  • Power management
  • Power management forum

• LM5051: THERMAL INFO

  

  Abhijith S

  TI Thinks Resolved

  Part Number: LM5051 Tool/software: HI Please help to find the thermal data for the part LM5051MAX/NOPB. We need the following datas: RThetaJB : RThetaJC : Max Allowed Tc : (in degC ) Thanks

  • 4 months ago
  • Power management
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• LM5051: Low Side Oring due to Voltage Stress is not Enough

  

  Francis Jiang

  TI Thinks Resolved

  Part Number: LM5051 Tool/software: Hi Team, Due to voltage stress is not enough in 800V HVDC system, I suggest customer to change high side Oring to low side Oring, whether LM5051 or LM5050 is more suitable for this application? +BUS is 800V and -BUS…

  • 4 months ago
  • Power management
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• LM5051: Use one LM5051 + two FETs in parallel, or one LM5051 + one FET in two parallel circuits?

  

  Conor

  TI Thinks Resolved

  Part Number: LM5051 Hi, This is a continuation of "Related Questions". I'm considering using the LM5051 that was previously introduced to me. It is expected that the Vds of External-FET will be regulated to 45mV(Typ). In that case, the external…

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

• LM5051: Excel Calculate tools

  

  Chao Fu Chen

  TI Thinks Resolved

  Part Number: LM5051 Tool/software: Hi Expert, Could we have the calculate tool for LM5051 to share ? Eddie

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

• LM5051: How to buffer LM5051 GATE pin to drive FET gate which has large Qg?

  

  Kazuya Nakai59

  Resolved

  Part Number: LM5051 Hello guys, This is a similar question with the following URL. https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1252552/lm5050-1-how-to-buffer-lm5050-gate-pin-to-driver-fet-gate-which-has…

  • Resolved

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

• LM74700D-Q1: Is GATE Pin floating while LM5051 and LM74700 are in Disable state ?

  

  Red Yen

  Resolved

  Part Number: LM74700D-Q1 Other Parts Discussed in Thread: LM5051 Tool/software: Hi support team My customer currently encountering a difficult problem. Is GATE Pin floating while LM5051 and LM74700 are in Disable state ? Because they may need to use…

  • Resolved

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

• LM5051: FET selection inquiry for O-ring and hot swap solutions

  

  JH Shin

  TI Thinks Resolved

  Part Number: LM5051 Other Parts Discussed in Thread: TPS2390 , Tool/software: Hello, My customer is considering using OR-ing (LM5051) and Hotsawp(TPS2390/1). They have a question about the use of MOSFETs in both devices. Below are the application…

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

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