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Showing 24 results View by: Thread Post Sort by
    Answered
  • LM5109A: Driving a complementary (NMOS/PMOS) power FET pair

    Arttu Rasanen
    Arttu Rasanen
    Resolved
    Part Number: LM5109A Other Parts Discussed in Thread: UCC21550 , UCC21551 , UCC21231 Dear TI, I would like to ask whether the LM5109A would be suitable for use in the following communication application. The goal would be to steer the load current…
    • Resolved
    • 1 month ago
    • Power management
    • Power management forum
  • Answered
  • LM5109A: Unencrypted Spice Model

    lev nemets1
    lev nemets1
    Resolved
    Part Number: LM5109A Other Parts Discussed in Thread: LM5109 , , LM5109B Tool/software: Hello, Could you ,please, give us an encrypted spice model for LM5109 (we are using Simetrix simulator), or what value of source and sink resistors we can use in our…
    • Resolved
    • 11 months ago
    • Power management
    • Power management forum
  • LM5109A: LM5109A

    SHIV BAJORIA
    SHIV BAJORIA
    TI Thinks Resolved
    Part Number: LM5109A Other Parts Discussed in Thread: LM5109 , LM5109B Hello Team, I am using the LM5109A Half Bridge Gate Driver in design. I need to calculate the current will souce by this device. I am doing the current calculation on VDD as well…
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • LM5109A: Charge pump operation at high temperature?

    Neil Tice
    Neil Tice
    Resolved
    Part Number: LM5109A Hi, we have a small inverter for a BLDC motor that uses the LM5109A. Commutation is six-step, and at temperatures above about 75C, the voltage on the charge pump capacitor is dropping about 3X faster than at room temperature. It is…
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
  • LM5109A: When HI is always 5V, will HO keep high always?

    Amelie Zheng
    Amelie Zheng
    TI Thinks Resolved
    Part Number: LM5109A Hi Team, If HI is 5V always, will HO keep high level always? I just want to know if HI is always high, how could HO bootstrap?
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • LM5109A: Is there a pull-down to hold the upper FET off ?

    George Pontis46
    George Pontis46
    Resolved
    Part Number: LM5109A I am concerned about the possibility of an undefined state when both inputs are low for a long time. Under this condition, I wonder if FET or circuit leakage could pull the top gate positive slightly. If so, then the gate could eventually…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • LM5109A: BLDC driver failure

    Shuli Shmaya83
    Shuli Shmaya83
    Resolved
    Part Number: LM5109A Other Parts Discussed in Thread: LM5109 , LMG5200 Hello, I'm using 3 LM5109A to drive 3 phase 200W BLDC motor. I've included schematic with component details. VIN to the power MOSFET half bridge stage: 20V-33.6V (Battery power…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • [FAQ] LM5109: Differences between LM5109A and LM5109B

    Richard Herring
    Richard Herring
    Part Number: LM5109 There have been questions regarding the differences between the LM5109A and LM5109B 100V high-side low-side drivers. The pinout, available packages and parameter specifications are the same for the LM5109A and LM5109B. So the LM5109B…
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • LM5109A: BLDC motor controller problem

    Sarira Salmi
    Sarira Salmi
    Resolved
    Part Number: LM5109A Other Parts Discussed in Thread: LM5109 I am using LM5109A to drive IRFU3607(power MOSFET) in a BLDC motor controller. The PWM is generated through a microcontroller. The motor is a rewind motor that takes up the excess liner. The…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: LM5109A: What might be causing my FET driver to blow up?

    Don Dapkus
    Don Dapkus
    Resolved
    Hi Cameron, Since we haven't heard from you in a while, I must assume this issue has been resolved. If you would like to share with the community how you fixed it, that would be great!
    • over 7 years ago
    • Power management
    • Power management forum
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