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[Solved] LAN Controller HW v3.7 - identification of SOT23-6 element in the inverter circuit (driver)

xionc 648 6
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 20564358
    xionc
    Level 15  
    Posts: 218
    Rate: 12
    Hello!
    I have a request for LAN Controller users (mine is HW v3.7), if someone could read and provide the designation of the component in the SOT23-6 housing, marked with an arrow in the picture (inverter driver).

    LAN Controller HW v3.7 - identification of SOT23-6 element in the inverter circuit (driver) .
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  • #2 20564398
    gradek83
    Level 43  
    Posts: 9048
    Help: 925
    Rate: 2077
    Wash the system with a swab of IPA and check the marking.
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  • #3 20564460
    xionc
    Level 15  
    Posts: 218
    Rate: 12
    Thank you for your advice, but this is where I started. The circuit is after an overvoltage, the housing melted and delaminated - hence the question.
  • #4 20564477
    lopr_pol
    Level 32  
    Posts: 1691
    Help: 161
    Rate: 476
    A circuit so burnt it and probably further overvoltage (by eye it's the dc-dc converter driver).
    Solder and power the circuit from an external power supply as it may not be worth resuscitating the whole board.
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  • #5 20564491
    xionc
    Level 15  
    Posts: 218
    Rate: 12
    I do not want to replace a faulty circuit. I need its specifications.
  • #6 20564523
    raks0
    Level 31  
    Posts: 764
    Help: 253
    Rate: 443
    Draw out the layout surroundings and try here Link , Link .
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  • #7 20565904
    xionc
    Level 15  
    Posts: 218
    Rate: 12
    I managed to find, as if anyone ever had a similar problem - the 5V inverter is on the MP2459 chip.

Topic summary

✨ The discussion revolves around identifying a SOT23-6 component in the inverter circuit of a LAN Controller HW v3.7, which was damaged due to overvoltage. The user initially sought help to identify the component marked in a provided image. Responses included suggestions to clean the circuit and check markings, but the user clarified that the circuit was burnt and delaminated, making identification difficult. Further advice included powering the circuit externally, but the user emphasized the need for specifications rather than replacement. Ultimately, the user discovered that the inverter is based on the MP2459 chip.
Generated by the language model.
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