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VIPER38HD - STMicroelectronics

Description: STMICROELECTRONICS - VIPER38HD - AC/DC Off-Line Switcher IC, VIPerPlus Family, Flyback, 8.5 VAC - 23.5 VAC, 1.5 W, NSOIC-16

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VIPER38HD - STMicroelectronics - PCB symbol
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VIPER38HD - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO16 Narrow
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VIPER38HD Details

  • Manufacturer Part Number:

    VIPER38HD

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOP-16

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    7

  • 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

  • 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

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    3.5 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    127 kHz

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

VIPER38HD Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the VIPER38HD evaluation board user manual (UM2176). It's essential to follow this layout to ensure optimal performance, especially for the high-frequency switching nodes.
  • The transformer selection depends on the input voltage, output voltage, and power rating of your application. STMicroelectronics provides a transformer selection guide in the VIPER38HD datasheet (Section 10.2). You can also use online transformer selection tools or consult with a transformer manufacturer.
  • Although the datasheet specifies a maximum VCC voltage of 28V, it's recommended to limit it to 25V to ensure reliable operation and prevent damage to the internal voltage regulator.
  • You can implement OVP and UVP using external components, such as voltage supervisors (e.g., STMicroelectronics' STM6627) or discrete components (e.g., zener diodes and resistors). The VIPER38HD datasheet provides guidelines for OVP and UVP implementation (Section 10.3).
  • A low-ESR ceramic capacitor (e.g., X7R or X5R) with a value between 1uF and 10uF is recommended for the input capacitor (CIN). This helps to filter out high-frequency noise and ensure stable operation.

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VIPER38HD Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like VIPER, or try a keyword search, such as Switching Regulator or Controllers

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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