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Showing 404 results View by: Thread Post Sort by
  • LM7480-Q1: TVS Selection

    CHUN HAO LO
    CHUN HAO LO
    Part Number: LM7480-Q1 if battery system is 48V, how to select TVS specifications? Are there any other points to note? This redundant system will carry 1KW output. Please share your experiences for me. Thank you so much.
    • 7 hours ago
    • Power management
    • Power management forum
  • Answered
  • LM7480: Differences between LM7480, LM7481 and LM74502

    fedi makni
    fedi makni
    Resolved
    Part Number: LM7480 Other Parts Discussed in Thread: LM7481 , LM74502 , Tool/software: Hello, I am currently designing a protection circuit for our device. Our device operate at 48V with output current of around 8A We would like to protect it from:…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • LM7480: MIL-STD-1275E 300W Power Solution

    GARETH OU
    GARETH OU
    TI Thinks Resolved
    Part Number: LM7480 Other Parts Discussed in Thread: LM5069 , TIDA-010242 , Hi We are currently evaluating your MIL-STD-1275E reference design (TIDA-010242 based on LM7480-Q1 and LM5069). However, our system requirement is significantly higher: …
    • 26 days ago
    • Power management
    • Power management forum
  • LM7480-Q1: LM74800 Questions

    GARETH OU
    GARETH OU
    TI Thinks Resolved
    Part Number: LM7480-Q1 Hi LM74800 Questions 1. Why does HGATE take so long to start after the ENABLE action (approximately 4.8ms)? Is this defined in the spec? 2. When the input is reversed and reverse protection occurs, DGATE shuts down. Is HGATE…
    • 20 days ago
    • Power management
    • Power management forum
  • Answered
  • LM7480-Q1: LM7480-Q1 simulation result is different with datasheet

    li xuefeng
    li xuefeng
    Resolved
    Part Number: LM7480-Q1 Other Parts Discussed in Thread: TINA-TI Tool/software: Hello teams, I download the PSpice file of LM74800, but I found the voltage of DGATE is not meet datasheet. VIn is 12V ,but DGATE is 18V. BTW ,how can i get the PSpice…
    • Resolved
    • 9 months ago
    • Power management
    • Power management forum
  • LM7480: LM74800QDRRRQ1 sch review.

    Leo H
    Leo H
    TI Thinks Resolved
    Part Number: LM7480 Tool/software: Hi, Attached please find Q10 (HGATE driven) VGS signal when load = 20A. I would expect an almost DC signal to fully enhance the FET (I understand the DGATE driven FET is linearly regulated to ~ 10,5mV voltage drop).…
    • 7 months ago
    • Power management
    • Power management forum
  • Answered
  • LM7480-Q1: LM7480-Q1 not operating correctly

    Graham Crompton
    Graham Crompton
    Resolved
    Part Number: LM7480-Q1 Tool/software: Hi I have a problem with the LM7480-Q1 failing to switch on the external transistors Q1 and Q2 in the circuit below. The measured voltage on VS (pin 10) is approximately 3V referenced to GND. Input voltage is…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • LM7480: LM74801QDRRRQ1 - Proper connections for not using DGATE MOSFET

    Kris Parrent
    Kris Parrent
    TI Thinks Resolved
    Part Number: LM7480 Good afternoon, I have used the LM74801QDRRRQ1 in the past with success, however, I have a new design with it that is a little bit different. I have experienced a failure and would like to request a schematic review. The application…
    • 2 months ago
    • Power management
    • Power management forum
  • LM7480: V(DGATE) – V(A) only 3V

    user5883945
    user5883945
    TI Thinks Resolved
    Part Number: LM7480 Tool/software: Hi, V(DGATE) – V(A) only 3V, Causing Q1 to heat up. The customer tested with 30V, VDGATE 33V,HGATE 41V, Q1 heat up,Q2 normal. Increasing the capacitance CAP to 470nF does not improve either.
    • 6 months ago
    • Power management
    • Power management forum
  • Answered
  • LM7480: LM74800 power MUX + RPP

    Leon Hermans
    Leon Hermans
    Resolved
    Part Number: LM7480 Tool/software: Hello - We are considering using the LM74800 for a power MUX application, I found two diagrams illustrating how the OR'ing for this part: In our application, we have four power sources Power source…
    • Resolved
    • 8 months ago
    • Power management
    • Power management forum
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