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SI4542DY - onsemi

Description: 30V Complementary PowerTrench® MOSFET

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SI4542DY - onsemi PCB footprint - Small Outline Packages - Small Outline Packages - 8-Pin SOIC
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SI4542DY Details

  • Manufacturer Part Number:

    SI4542DY

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC-8

  • Package Description:

    SOP-8

  • Manufacturer Package Code:

    751EB

  • ECCN Code:

    EAR99

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Configuration:

    SEPARATE, 2 ELEMENTS WITH BUILT-IN DIODE

  • DS Breakdown Voltage-Min:

    30 V

  • Drain Current-Max (ID):

    6 A

  • Drain-source On Resistance-Max:

    0.028 Ω

  • FET Technology:

    METAL-OXIDE SEMICONDUCTOR

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Moisture Sensitivity Level:

    1

  • Number of Elements:

    2

  • Number of Terminals:

    8

  • Operating Mode:

    ENHANCEMENT MODE

  • Operating Temperature-Max:

    175 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Polarity/Channel Type:

    N-CHANNEL AND P-CHANNEL

  • Power Dissipation-Max (Abs):

    2 W

  • Pulsed Drain Current-Max (IDM):

    20 A

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    YES

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    GULL WING

  • Terminal Position:

    DUAL

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

    30

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

SI4542DY Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output traces short and away from each other to minimize noise and coupling.
  • Ensure the input voltage is within the recommended range (2.7V to 5.5V) and the bias voltage (VBIAS) is set to 1.65V (typical) with a 10kΩ resistor to GND. Verify the output voltage is within the specified range (1.8V to 3.3V).
  • The SI4542DY can deliver up to 200mA of output current, but it's recommended to limit the output current to 150mA for optimal performance and to prevent overheating.
  • Use a thermal pad or a heat sink to dissipate heat. Ensure good airflow around the device and avoid blocking the thermal pad. The maximum junction temperature is 150°C.
  • Use a shielded enclosure and keep the device away from high-frequency sources. Use a common-mode choke or a ferrite bead to filter the input and output lines. Ensure good PCB layout and decoupling to minimize radiation.

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