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VIPER22ASTR-E - STMicroelectronics

Description: STMicroelectronics VIPER22ASTR-E, SMPS Controller, -0.3 → 730 V, 8-Pin, SOIC

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VIPER22ASTR-E - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO-8_a
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VIPER22ASTR-E Details

  • Manufacturer Part Number:

    VIPER22ASTR-E

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    SO-8

  • Pin Count:

    8

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    14 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    38 V

  • Input Voltage-Min:

    9 V

  • Input Voltage-Nom:

    18 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Output Current-Max:

    0.84 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • 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

VIPER22ASTR-E Frequently Asked Questions (FAQs)

  • STMicroelectronics recommends a 4-layer PCB with a solid ground plane, and a separate layer for the high-voltage traces to minimize electromagnetic interference (EMI).
  • To ensure reliable start-up, ensure that the input voltage (VIN) is within the recommended range, and the output capacitor (COUT) is properly sized to handle the output voltage ripple. Also, ensure that the feedback resistors (RFB1 and RFB2) are correctly sized to set the output voltage.
  • The maximum allowed output current of the VIPER22ASTR-E is 2A, but it can be limited by the thermal performance of the package and the PCB design. It's recommended to derate the output current based on the ambient temperature and the thermal design of the system.
  • To protect the VIPER22ASTR-E from overvoltage and undervoltage conditions, use a voltage supervisor or a reset IC to monitor the input voltage and shut down the device if it exceeds the recommended range. Additionally, consider using a TVS diode or a zener diode to clamp the input voltage.
  • The recommended input capacitor value for the VIPER22ASTR-E is 10uF to 22uF, with a voltage rating of at least 50V. The capacitor should be placed as close as possible to the VIN pin to minimize noise and ripple.

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VIPER22ASTR-E 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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