Post Go back to editing

PSE Controller LTC9101 isolation

Category: Hardware
Product Number: ltc9101-1
Software Version: Non

Dear Sir

        We observous the  LTC9101-1/LTC9102/LTC9103 has Proprietary Isolation Scheme .

         Does it have any other scheme replae it ? (reference using Transformer between LTC9101 and LTC9102)

        on our desing we need  to reserve isolation between System to LTC9101 in order to meet spec

     thanks 

Parents
  • Hello,

    The communication between the LTC9101-1 and LTC9102s/LTC9103s is through a high-speed data interface over either a proprietary isolation scheme or direct connection scheme.

    In the proprietary isolation scheme, the LTC9101-1/LTC9102/ LTC9103 chipset uses transformers to isolate the LTC9101-1 from one to four LTC9102s/LTC9103s. The transformers should be 10BASE-T or 10/100BASE-T with a 1:1 turns ratio. These transformers typically provide 1500V of isolation between the LTC9101-1 and the LTC9102s/LTC9103s. Optimally, the selected transformers do not have common-mode chokes. If a transformer with chokes must be used, the chokes should be on the LTC9102/LTC9103 side of the isolation. Refer to the figure below.

    In the direct connection scheme, the LTC9101-1/LTC9102/LTC9103 chipset relies on pre-existing system isolation. In this scheme, the LTC9101-1 connects directly to one to four LTC9102s/LTC9103s using a proprietary communication protocol. Refer to the figure below.

    Best Regards,

    Eric

Reply
  • Hello,

    The communication between the LTC9101-1 and LTC9102s/LTC9103s is through a high-speed data interface over either a proprietary isolation scheme or direct connection scheme.

    In the proprietary isolation scheme, the LTC9101-1/LTC9102/ LTC9103 chipset uses transformers to isolate the LTC9101-1 from one to four LTC9102s/LTC9103s. The transformers should be 10BASE-T or 10/100BASE-T with a 1:1 turns ratio. These transformers typically provide 1500V of isolation between the LTC9101-1 and the LTC9102s/LTC9103s. Optimally, the selected transformers do not have common-mode chokes. If a transformer with chokes must be used, the chokes should be on the LTC9102/LTC9103 side of the isolation. Refer to the figure below.

    In the direct connection scheme, the LTC9101-1/LTC9102/LTC9103 chipset relies on pre-existing system isolation. In this scheme, the LTC9101-1 connects directly to one to four LTC9102s/LTC9103s using a proprietary communication protocol. Refer to the figure below.

    Best Regards,

    Eric

Children