• RE: TINA/Spice/LM5104: LM5104 TINA model, doesn't work?

  

  Arpan Gupta

  Hi Israel, I have looked into your test bench. Below are some issues I can point you out. I think the setup & connections are not proper. Could you please see the typical application schematic present in datasheet and make the connections accordingly…

  • over 6 years ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

• LM5104: Additional deadtime

  

  Andrew Meldrum

  Part Number: LM5104 Hi, Can the value of RT be safely increased beyond 100k for additional deadtime? I would like to achieve an addition ~100ns of deadtime on top of what is achieved with RT = 100k. Kind Regards, Andrew

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

• LM5104: A question about LM5104, LM5101

  

  Erwin Xie

  Resolved

  Part Number: LM5104 Other Parts Discussed in Thread: LM5101 hi, My customer is developing a module, and they found the Negative voltage on drive’s input and output pin were higher than -0.3V, is there any risks for this application? Here are the Schematic…

  • Resolved

  • over 7 years ago
  • Power management
  • Power management forum
Answered

• LM5104: a formula of HO voltage

  

  Yasushi Fujiwara

  Resolved

  Part Number: LM5104 Hello Experts, Would you answer for a following question? 1. If customer use a circuit like a figure of datasheet p9, how to calculate a HO voltage? HO＝HV＋IN－Vf is correct? 2. A driver of HO-pin is push pull output (Pch+Nch MOS), correct…

  • Resolved

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

• LM5104: max duty cycle

  

  Sam Ting

  Resolved

  Part Number: LM5104 Hi team, What is the maximum duty cycle of the LM5104? Can you guide us how to estimate the maximum duty cycle? Thank you! Best regards, Sam Ting

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum
Answered

• LM5104: Driving parallel mosfets

  

  Andrew Meldrum

  Resolved

  Part Number: LM5104 Other Parts Discussed in Thread: TIDA-00364 Hi, I would like to use three LM5104's to drive mosfets in parallel for a three-phase inverter. If using individual gate resistors, is it suitable or would there be other precautions…

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum

• RE: LM5104: Wrong signal when connect to mosfet

  

  Richard Herring

  Hello Li, Thank you for the interest in the LM5104. The LM5104 is a half-bridge driver configured to drive the high side MOSFET and low side MOSFET with the low side driven complementary (inverted) from the PWM input. I see in the second waveform…

  • over 6 years ago
  • Power management
  • Power management forum
Answered

• LM5104: About bootstrap capacitor

  

  mayumi.T

  Resolved

  Part Number: LM5104 Hello, Currently, due to difficulty in supplying ceramic capacitors, my customers are considering replacing them with electrolytic capacitors or conductive polymer capacitors. Therefore, for the following parts, Please tell me…

  • Resolved

  • over 7 years ago
  • Power management
  • Power management forum

• RE: LM5104: LM5104M

  

  Richard Herring

  Hello Zacharias, I responded to your post on Nov 15th with an inquiry about more details on your test conditions to help resolve your concerns on the LM5104. Have you been able to determine the cause of the gate drive slow rise time, or confirm the test…

  • over 8 years ago
  • Power management
  • Power management forum
Answered

• LM5104: When VDD = 0, are the HO and LO outputs in guaranteed states to have both MOSFETs turned off?

  

  Marcus Müller

  Resolved

  Part Number: LM5104 Hi, In case the supply voltage VDD = 0, are the HO and LO outputs of LM5104 in guaranteed states to have both MOSFETs turned off? Thanks! Marcus

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum

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