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THVD1428DR - Texas Instruments

Description: RS-485 Interface IC 3.3-V to 5-V RS-485 transceiver with surge protection

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THVD1428DR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A height 1.75
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THVD1428DR - Texas Instruments  - 3D model - Small Outline Packages - D0008A height 1.75
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THVD1428DR Details

  • Manufacturer Part Number:

    THVD1428DR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2020-05-18

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ALSO OPERATES AT 5V NOM

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • High Level Input Current-Max:

    0.000125 A

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-485-A; TIA-485-A

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.905 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Out Swing-Min:

    1.5 V

  • Output Characteristics:

    DIFFERENTIAL

  • Output Low Current-Max:

    0.008 A

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HSOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG

  • Peak Reflow Temperature (Cel):

    260

  • Receive Delay-Max:

    45 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    3 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Supply Voltage1-Max:

    5.5 V

  • Supply Voltage1-Min:

    3 V

  • Supply Voltage1-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Transmit Delay-Max:

    25 ns

  • Width:

    3.895 mm

THVD1428DR Frequently Asked Questions (FAQs)

  • A good PCB layout for the THVD1428DR involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device. TI provides a recommended layout in the datasheet and application notes.
  • To ensure reliable operation in high-temperature environments, ensure that the device is properly heatsinked, and the junction temperature (TJ) is kept below the maximum rating of 150°C. Also, consider using a thermal pad or heat sink to dissipate heat.
  • The THVD1428DR's limited output current (150mA) means it's not suitable for high-current applications. Ensure your system design takes this into account, and consider using external amplifiers or buffers if higher currents are required.
  • To troubleshoot issues with the THVD1428DR, start by verifying the input voltage, output voltage, and load conditions. Check for proper PCB layout, decoupling, and bypassing. Use an oscilloscope to inspect the output waveform and look for signs of oscillation or ringing.
  • While the THVD1428DR can be used in switching regulator applications, it's not the most suitable device for this purpose due to its limited output current and bandwidth. Consider using a dedicated switching regulator IC for such applications.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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