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LM74670-Q1: Can LM74670 be used for ORing of N+1 redundant power supplies system?

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Replies: 8

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Part Number: LM74670-Q1

 Hello guys,

 One of my customers is considering using LM74670-Q1 for their next N+1 redundant power supplies system.

 They are going to have several products which can support to 3V~25V voltage range.

 They were looking for TI ORing device for it and found LM74670-Q1, smart diode IC.

 Can LM74670 be used for ORing of N+1 redundant power supplies system which has 3V~25V voltage range?

 If LM74670-Q1 can not be used for the system. could you please tell me any other TI device?

 Your reply would be much appreciated.

 Best regards,

 Kazuya.

  • Hello Kazuya,

    We recommend our new devices LM74700-Q1 for ORing N+1 redundant power systems.

    LM74700-Q1 is better than LM74670-Q1 because LM74670-Q1's output voltage has a pulsed behavior and may not be suitable for all systems.

    For ORing applications, we request to you to refer to the datasheet application section 10.2 or the application note section 8  "https://www.ti.com/lit/an/slvae57/slvae57.pdf"

    Let us know if you have further questions.

    Regards,

    Kari.

  • In reply to Karikalan Selvaraj:

     Hello Kari,

     Thank you very much for the prompt reply.

     Could I ask you an additional question?

     Their power supply voltage range is 3.0V~25V.

     Can LM74700-Q1 operate correctly at 3.0V input voltage?

     Thank you again and best regards,

     Kazuya.

  • In reply to Kazuya Nakai59:

    Hi Kazuya,

    LM74700 can operate upto 3.2V.

    If you require 3V operation we recommend to use LM74800-Q1 device which supports 3V to 65V operation.

    Regards,

    Kari.

  • In reply to Karikalan Selvaraj:

     Hi Kari,

     Thank you for the information.

     It seems that the device is still under developing.

     Do you know when the device release date is?

     Thank you again and best regards,

     Kazuya. 

  • In reply to Kazuya Nakai59:

    Hi

    We need to take discussion about release dates offline via email.

    Can you share your email id?

    Regards

    Kari.

  • In reply to Karikalan Selvaraj:

    Hi Kazuya,

    Please share your email id, so that we can take this discussion offline.

    Regards,

    Kari.

  • In reply to Karikalan Selvaraj:

     Hi Kari.

     Thank you for your reminding.

     I sent a message to you via friend request system last week.

     I will send you it again.

     Thank you again and best regards,

     Kazuya. 

  • In reply to Kazuya Nakai59:

    Hi Kazuya,

    I have sent an email to you on the release timeline for LM74800 and would like to close this thread if you have no further questions.

    Regards

    Kari.

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