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Alex thomas
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Alex thomas
Asked: January 16, 2023In:
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Hello, I’m designing a circuit with an L5973D switching controller to give 3.8 v and am facing a peculiar problem. The circuit is as per the design reference in the datasheet and the feedback resistors are given to give 3.8 v ...Read more

Hello,

I’m designing a circuit with an L5973D switching controller to give 3.8 v and am facing a peculiar problem. The circuit is as per the design reference in the datasheet and the feedback resistors are given to give 3.8 v affair (10K and 4.7 K). originally, I get 3.8 v. But while leaving the circuit connected, it starts inching up about 10mV every 10 twinkles or so. likewise, powering down the circuit and also back over doesn’t beget it to give 3.8 v again. Wondering what is going on.

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dc-dc conversionl5973dpeculiarpower managementproblemresistors
  1. nidhi singh

    Hi, out of my one experience in switch mode power supplies there are a couple of key points to follow when doing these designs. 1. Insure all resistors are 1 type, this limits the change over temperature which in turn will limit the output change variations. 2. Insure the track from the switching poRead more

    Hi,

    out of my one experience in switch mode power supplies there are a couple of key points to follow when doing these designs.

    1. Insure all resistors are 1 type, this limits the change over temperature which in turn will limit the output change variations.

    2. Insure the track from the switching point is close as possible to the coil and doesn’t add resistance to the coil.

    3. Output capacitors require to hold a low ESR type

    hope some of this helps.

    Thanks & Regards

    Nidhi Singh

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nidhi singh
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nidhi singh
Asked: December 1, 2022In:
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Hello, What is the difference between Parts L9826 and Parts E-L9826？ I can not see the difference between them from the datasheets. Thank you in Advance

Hello,

What is the difference between Parts L9826 and Parts E-L9826？ I can not see the difference between them from the datasheets.

Thank you in Advance

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datasheetse-l9826l9826ledsopteolectronicspower management
  1. ashishgawade

    There's no technical difference between L9826 and E-L9826. At the time, the version with the prefix E- indicated the more environmentally friendly Eco version, which has been standard for a long time. still, please mark this thread as answered by selecting Select as best, as also explained then, IfRead more

    There’s no technical difference between L9826 and E-L9826. At the time, the version with the prefix E- indicated the more environmentally friendly Eco version, which has been standard for a long time.

    still, please mark this thread as answered by selecting Select as best, as also explained then, If the problem is solved. This will help other users find that answer faster.
    Regards

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ashishgawade
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ashishgawade
Asked: November 3, 2022In:
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Hii, Our IQC team would like to know why the trace code is different between the label and element Text, please see the attached and so could you please let me know the date code of this batch? Read more

Hii, Our IQC team would like to know why the trace code is different between the label and element Text, please see the attached and so could you please let me know the date code of this batch?

Volt.Tech

Thank you so much.

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power managementstd100n107f7
  1. Best Answer
    vikas Nagpal

    Welcome, to the community! This is obviously an inner problem that we still want to get to the lowest of. The trace code GF473234 to your STD100N10F7 is correct, i.e. date code 234 = 2022, week 34. However, a person by accident combined up the 2 groups of three digits on the label, i.e. 473 and 234.Read more

    Welcome, to the community!

    This is obviously an inner problem that we still want to get to the lowest of.

    The trace code GF473234 to your STD100N10F7 is correct, i.e. date code 234 = 2022, week 34. However, a person by accident combined up the 2 groups of three digits on the label, i.e. 473 and 234. You can consequently assume that the whole thing is in order and simplest the label becomes printed incorrectly.

    Does it solve your question?

    Regards

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techfreak
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techfreak
Asked: July 14, 2022In:
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What is the drive current requirement of the pin nRESET(Control signal) in the PMIC?

What is the drive current requirement of the pin nRESET(Control signal) in the PMIC?

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da9062drivemcunresetpower managementrenesasRenesas Microcontroller
  1. vikas Nagpal

    The current is specified in the test conditions, the Voh and Vol is specified for a load of 1mA(for push-pull). The nRESET can be treated as the GPIO characteristics. 

    The current is specified in the test conditions, the Voh and Vol is specified for a load of 1mA(for push-pull).

    The nRESET can be treated as the GPIO characteristics. 

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Manoj
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Manoj
Asked: June 14, 2022In:
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I am getting error to update firmware when trying to burn program in XDPL8210 IC using .dpvision tool. Please advise some solution ?

I am getting error to update firmware when trying to burn program in XDPL8210 IC using .dpvision tool.

Please advise some solution ?

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.dpvisionfirmwarepower managementxdplXDPL8210 IC
  1. pallavi sharma

    As the XDPL8210 chip on the 35 W reference design PCB has a first full set of parameters in its One-Time Programmable (OTP) memory space, only changed parameters are written in the OTP memory. 1 Load configuration file (see example in Figure 7). 2 Modify the parameter value needed, then press [File]Read more

    As the XDPL8210 chip on the 35 W reference design PCB has a first full set of parameters in its One-Time
    Programmable (OTP) memory space, only changed parameters are written in the OTP memory.

    1 Load configuration file (see example in Figure 7).
    2 Modify the parameter value needed, then press [File] >> [Save] or [File] >> [Save as] to save
    the configuration file. Otherwise, proceed to step 3.
    3
    (optional)
    Disconnect or turn off AC input voltage and check the hardware connection for configuration,
    see Figure 2 and Figure 3.
    4 Press to supply power and establish connection to the target XDPL8210. After this,
    XDPL8210 will enter configuration mode and the device status should change to .
    5
    Press to burn the configuration into target XDPL8210.
    After this step, a window pops up, like one of these below.

    Note: If the parameter configuration is equivalent to to the pre-existing parameters, the
    XDPL8210 will not burn them in the OTP memory.
    6 Press “Proceed” or “Yes” to burn the configuration. After this, a window pops up indicating
    success.
    7 Press “OK” on the pop-up window then disconnect the programming cable from the board
    connector and test the application, if needed.

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