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TS3A44159: 2-channel 2:1 SPDT

Fan.Wang
Intellectual 2900 points
Part Number: TS3A44159

My customer is designing smart speaker and choose STG3684AUTR (Low voltage 0.5 Ω max dual SPDT switch with break-before-make), and we want to replace it with TS3A44159RGTR, could you kindly check if it is most proper part to replace? 

  • 0
    TI__Prodigy 240 points

    Hello Fan,

    Thank you for your question. TS3A44159RGTR is a 4-channel device, whereas STG3684AUTR is a 2-channel device.

    To find the best TI cross for this device, I used our parametric search available at www.ti.com/switches under the Analog Switches/Muxes “Products” tab.

     

    In the Quick Search, I filled out the 3 top most important specifications that will significantly narrow down your search for the right switch:

    1. # of channels
    2. Configuration
    3. Vdd (operating voltage range)

     

     

    This narrowed our search to 4 switches.

     

    Then I sorted by lowest On-State Resistance (Ron) and as you can see below, there is a 2-channel, 2:1 switch in a UQFN package.

     

     

    TS5A23159RSER will be your best cross for this competitor device, while TS5A23157RSER could be a more cost effective alternative. It should be noted that these are not exact pin for pin crosses.

     

    Please let us know if you have further questions.