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ESDS314: What is the best selection for PHY interface protection?

Gordon Xu
Prodigy 440 points
Part Number: ESDS314
Other Parts Discussed in Thread: TPD4E05U06, , ESDS304, TPD4E1U06

Hi experts,

My customer need to design the protection for PHY DP83822IR, I find there are four selections to meet the function:

ESDS314, ESDS304, TPD4E05U06, TPD4E1U06

1. Could you tell me whcih one is the best selection?

2. What is the difference of them, could you pls give me the comparison anaysis? 

Many thanks!

BR,

Gordon

  • 0
    TI__Expert 8471 points

    Hi Gordon,

    Since DP83822 is a 100 Mbps PHY, ESDS314 will give you the best ESD and surge protection. ESDS304 will have a lower surge rating but also lower capacitance for better signal integrity. TPD4E05U06 will have the lowest capacitance. TPD4E1U06 will provide the lowest cost. Please see my comparison table below:

      ESDS314 ESDS304 TPD4E05U06 TPD4E1U06
    Vrwm (V) 3.6 3.6 5.5 5.5
    # Channels 4 4 4 4
    Polarity Unidirectional Unidirectional Unidirectional Unidirectional
    Capacitance (pF) 4.5 2.3 0.5 0.8
    Clamping Voltage @ 16 A TLP (V) 5.5 5.8 23 20
    Leakage Current @ Vrwm (nA) 50 50 10 10
    IEC 61000-4-2 ESD Rating (kV) 30 30 12 15
    IEC 61000-4-5 Surge Rating  [Ippm] (A) 25 12 2.5 3
    Package SOT-23 SOT-23 USON SOT-23 & SC70

    Regards,

    Matt Smith