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  • LM5101A: Reliability concern if slight over-voltage applied to pin 6 on the negative side?

    TI Thinks Resolved
    Part Number: LM5101A From my customer who is qualifying this device for their new project: Engineering team found that the voltage applied to pin 6 is being exceeded on the negative side slightly: “During routine testing, an over-voltage on this driver…

  • RE: LM5101A keeps burning. Simple circuit 2 mosfet half bridge with LM5101 and an ATMEGA 168 for pwm.

    Hi Chuck.. Here is the website I used to estimate the bootstrap cap. " www.silabs.com/.../bootstrap-calculator.aspx" It allows you to calculate for a max of 4 MOSFETs. So I started with 1, then 2, then 3, then 4 to see the pattern and I extrapolated…

  • LM5101A vs LM5102/LM5105 bootstrap diode losses

    Other Parts Discussed in Thread: LM5105 , LM5102 In comparing the datasheets for the LM5100/LM5101x with the datasheets for the LM5102 and LM5105, there is roughly a factor of 3.5x increase in boot-strap diode dissipation for the 02 and 05 parts for similar…

  • LM5101A Gate Driver High Side Output Issue

    Other Parts Discussed in Thread: LM5101A Hi, We are using LM5101A in phase shift full bridge DC-DC converter for Mosfet Gate driving. We are facing a problem with High Side Output. There is crossover between the Top and Bottom Side Mosfet's Drain to Source…
    • Answered

  • LM5101A oscillates and burns up

    Resolved
    Other Parts Discussed in Thread: LM5101A We are using an LM5101A gate driver in a buck converter regulator for a battery charger. Several times we have experienced the driver chip burning up unexpectedly. Usually we can hear an audible noise and then it…
    • Resolved

  • LM5101A High Side Driver

    Other Parts Discussed in Thread: LM5101A , UCC27512 , LM5113 4251.sch1.docx Hello Sir/Madam, I am intending to use LM5101A as the gate driver for load side PMOS switch drive of a boost converter. Boost Max output : 12V-16.5V HI input gets the PWM signal…

  • LM5101A High output issues

    Other Parts Discussed in Thread: LM5101A Hi, I've been working with the LM5101A for a week now and have been having some trouble getting a signal out of the HO output of the IC. Right now these drivers will be sending a signal to a half H-bridge that…

  • RE: LM5100A: LM5100A using issues

    Hello Thomas, For compatibility with 3.3V CMOS, I assume for the driver inputs, the LM5100A will not be compatible. The LM5100A has high turn on thresholds of 5.4V typical. Within this driver family the LM5101A is compatible since the threshold is 2.3V…
    • Answered

  • RE: LM5101: simulation model of LTspice

    Resolved
    Hi, Hui, The LM5101 isn't recommended for new designs. There is an LM5101A which is recommended, and has a model. You can use the model in the LM5101A web page for either device, though. Another alternative is one of our newer devices, UCC27282 which…

  • RE: TIDA-01292: Gate Driver LM5101BMA query

    Hello Viabhav, If you are running simulations, you can find the simulation models in the LM5101A product folder which should have the TTL compatible inputs. Please confirm if this addresses your question, or you can post additional questions on this thread…

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