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VIPER28LDTR - STMicroelectronics

Description: VIPerPlus family: Peak power fixed frequency off line high voltage converter

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VIPER28LDTR - STMicroelectronics - PCB symbol
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VIPER28LDTR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO16 narrow_2024
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VIPER28LDTR - STMicroelectronics - 3D model - Small Outline Packages - SO16 narrow_2024
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VIPER28LDTR Details

  • Manufacturer Part Number:

    VIPER28LDTR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    ROHS COMPLIANT, SOP-16

  • Pin Count:

    16

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    23.5 V

  • Input Voltage-Min:

    8.5 V

  • Input Voltage-Nom:

    14 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.9 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.85 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    0.9 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    66 kHz

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

VIPER28LDTR Frequently Asked Questions (FAQs)

  • A good PCB layout for VIPER28LDTR involves keeping the high-frequency switching nodes (e.g., drain and source of the power MOSFET) as close as possible to the IC, using a solid ground plane, and minimizing the length of the traces carrying high-frequency signals.
  • To ensure the VIPER28LDTR operates within its SOA, monitor the IC's junction temperature, output current, and input voltage. Ensure the IC is properly heatsinked, and the output current is within the recommended range. Also, avoid operating the IC at high temperatures and high output currents simultaneously.
  • When selecting a transformer for use with VIPER28LDTR, consider the transformer's turns ratio, magnetizing inductance, and core material. Ensure the transformer is designed for the specific output voltage and current requirements of your application.
  • To troubleshoot issues with the VIPER28LDTR, start by verifying the PCB layout and component selection. Check for proper decoupling, filtering, and grounding. Use an oscilloscope to analyze the waveforms and identify any signs of oscillation or instability. Consult the datasheet and application notes for guidance on troubleshooting and optimization techniques.
  • The VIPER28LDTR is a high-voltage, high-current offline switcher IC with a built-in power MOSFET. It differs from other STMicroelectronics ICs in its specific feature set, such as its high voltage rating, current sense capability, and internal protection features. Compare the datasheets of different ICs to determine the best fit for your specific application.

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VIPER28LDTR Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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