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LM3526: Connection of pins

Yunus Emre Evmez
Prodigy 20 points
Part Number: LM3526

Hello everyone,

This is my first post in TI commumity. So please forgive me if my question is not properly explained, but i will try my best.

I have a mcu (FT905L), i want to usb connection with overcurrent protection LM3526 but i confused about pin connection.

1. There is a USB controller in datasheet what is that and what can i use for it or should i use I/O pin from mcu?

2. Is EN pin must be high for enable if answer is yes, can i connect that directly VBUS?

3. Is flag pin high or low in normal situation, can i connect that a led?

Best regards.

  • 0
    TI__Mastermind 18031 points

    Hi,

    1. The USB controller is your MCU. You can use the IO pin of MCU to control the power switch.

    2.

         For enable, refer to the above table on page 4 of datasheet.

        I am not sure what's your Vbus. For the threshold and ABS of EN, please refer to the datahseet EC table.

    3. For Fault:

       

    The normal operation is high.

    For TI's policy, I will first click resolved button.

    If you have any other concern, contact me any time.

    If you think resolved, please help click'Issue is solved button'.

    Thanks.

  • 0 in reply to Ziv Zhang
    Prodigy 20 points

    Thank you for reply.