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  • TMP464: trace between transistor and TMP464

    TI Thinks Resolved
    Part Number: TMP464 Hello, There is a layout example in figure 24 of datasheet. I would like to ask about D- connection point. The distance between transistors and TMP464 is around 10cm. We would like to connect 4 cathode connection point around the D…

  • TMP464: transistor difference between TMP461 and TMP464

    TI Thinks Resolved
    Part Number: TMP464 Other Parts Discussed in Thread: TMP461 , , TMP468EVM Hello, In 8 Application and Implementation, below transistors are recommended. TMP461: 2N3904 (NPN) or 2N3906 (PNP) TMP464: MMBT3904 (NPN) or a MMBT3906 (PNP) Is there any difference…
    • Answered

  • TMP464: Connection to devices with only DXP pin and DXN tied to GND

    Resolved
    Part Number: TMP464 Hi, we use the TMP464 in the arrangement as shown in the image, with devices that have diode connected PNPs or NPNs with the DXN tied internally to GND. We use a 0R resistor adjacent to the devices to sample the GND potential and…
    • Resolved
    • Answered

  • TMP464: MMBT3904 transistor selection

    Resolved
    Hi Sir, Due to space limit, customer would like to use below device as MMBT3904 transistor, is that ok? Anything need to modify? assets.nexperia.com/.../PMBT3904M.pdf Thanks, Patrick
    • Resolved
    • Answered

  • RE: Need your support to find a temperature sensor

    Resolved
    Dear Tony - Thanks for the post - the TMP1075 , TMP175 , TMP275 or TMP75 would meet your first search, they are similar to your featured devices. For the second search, the TMP464 meets functional and addressing requirements you listed, too, also similar…

  • TMP464: Thermal sensor x2, Voltage detector x4

    TI Thinks Resolved
    Part Number: TMP464 Other Parts Discussed in Thread: TMP513 , TMP512 , ADS1118 , AMC80 Hi Team, do we have temp with voltage detector together? Thermal sensor x2, Voltage detector x4 thanks!
    • Answered

  • TMP464: Placement of Cdiff and Rs

    Resolved
    Part Number: TMP464 We are using the diode-connected PNP connection, leaving footprints for Cdiff and Rs to test during bringup. Is it preferred to put Rs and Cdiff closer to the PNP or closer to the TMP464? The sensors are about 60-80mm from the IC,…
    • Resolved
    • Answered

  • TMP464: Should the pad be grounded?

    Resolved
    Part Number: TMP464 Should the exposed pad be connected to GND, or left electrically-floating?
    • Resolved
    • Answered

  • RE: TEMP - Remote-Sensor is connected to GND

    Resolved
    Hi ren, we have tested different transistor f.e. BC859C and 2N3906 and connected the 3 Pins as show in https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/810432/tmp464-connection-to-devices-with-only-dxp-pin-and-dxn-tied-to-gnd?tisearch=e2e…

  • RE: How should N-factor be measured?

    Hi Igarashi-san, Yes, this formula and approach is correct. The remote transistor should be held at temperature in a calibration bath for the best results. I recommend using TMP464's High and Low currents (120uA and 7.5uA) as your Ic1 and Ic2. However…

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