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CCS/TIDA-00779: TIDA-00779

Part Number: TIDA-00779

Tool/software: Code Composer Studio

Hi TI experts,

I'm more interested in the reference design(TIDA-00779) but here I come across PTC(B470N) in the circuit for inrush current limit.

usually NTC is used to limit inrush current, would you please give me some suggestions on using NTC or PTC to have proper inrush current limit.

which is better for inrush current limit


  • Raja, hello. Your query has been forwarded to our design owner. Please give us Monday, Tuesday at the latest to respond. The design owner for this design resides in China and it is already Friday evening there. 

    Best Regards

    John Fullilove

    Reference Design Operations

  • Dear customer,

    NTC thermistors are the most commonly used limiter. They have a wide range of uses and applications. However, a few scenarios exist that require a positive temperature coefficient (PTC). If a system meets one of the exceptions listed below, a PTC thermistor is the best choice.

    Please find details with below link.