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  • LM5108: internal structure

    TI Thinks Resolved
    Part Number: LM5108 Hi expert, My customer wants to know whether LM5108 has internal pull down resistor. if the answer is yes, how about the pull down resistance? they want to see whether they can not put external pull down resistor to save the BOM cost…

  • LM5108: driver current question

    TI Thinks Resolved
    Part Number: LM5108 hi team, Here are some questions from customers,could you please help me to figure out these? 1. Does the internal bootstrap link of LM5108 have a current-limiting design? If so, please help confirm the current limit value and provide…

  • LM5108: HB pin config

    TI Thinks Resolved
    Part Number: LM5108 Hi Team, Our customer has some question about LM5108. How to design the current capability of the power supply VDD of the LM5108 driver chip? According to calculations, at startup, the instantaneous current of VDD is related to the…

  • LM5108: The board layout of LM5108DRCR

    TI Thinks Resolved
    Part Number: LM5108 Here is the question from my customer. Please help on this. In the example board layout of LM5108DRCR, there are 4 holes Φ 0.2 on the big pad. Does it mean it’s better to place the holes on the big pad as symmetrically as possible…

  • LM5108: Single channel use (electronic switch)

    TI Thinks Resolved
    Part Number: LM5108 Other Parts Discussed in Thread: TMUX8108 , Dear, Is it possible to use this gate driver as a single channel gate driver? We have the following situation. We need to act as an electronic switch between a high impedant input and a relative…
    • Answered

  • LM5108: Driver failure

    Resolved
    Part Number: LM5108 Hi, I am currently working on the power control PCB for a FOC controlled BLDC motor. The three phases of the motor are powered using three LM5108 coupled to 6 MOSFETs (1 LM5108 + 2 half bridge MOSFET per phase). PWMs are generated…
    • Resolved
    • Answered

  • LM5108: Can bootstrap-intended half-bridge drivers be used with an external power supply rather than bootstrap capacitor ?

    Resolved
    Part Number: LM5108 Other Parts Discussed in Thread: UCC27282 , UCC21220 , , UCC27288 I am looking for a half-bridge driver to control a pair of MOSFETs in a half-bridge arrangement. This is not a motor drive or a conventional use as the driving frequency…
    • Resolved

  • LM5108: LM5108 GaNFET Driver

    TI Thinks Resolved
    Part Number: LM5108 Other Parts Discussed in Thread: LMG1205 , LMG1210 , LM5113-Q1 Hi Team, Can LM5108 drive the GaN FET? If so, what's the external circuit need to be added to drive the GaN FET? Thank you. Sincerely Frank
    • Answered

  • LM5108: Maximum Propagation Delay

    Resolved
    Part Number: LM5108 Hi Team, Our customer's application needs a fast driver where the maximum propagation delay spec is of significance. We're looking at the LM5108 and its datasheet shows typical propagation delay of 20ns. Do we have characterization…
    • Resolved
    • Answered

  • LM5108: Enable to HO pin timing/prop delay

    Resolved
    Part Number: LM5108 Hi guys, working with a customer on this device. Is there a spec for propagation delay from the EN pin to the HO pin? Example, what's the time delay from V_EN < 1.65V to HO = HS + 0.5V (or something similar). Thanks!
    • Resolved

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