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L4986B - STMicroelectronics

Description: CCM PFC controller with high voltage startup

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L4986B - STMicroelectronics - PCB symbol
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L4986B - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SSO10
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3D Models
L4986B - STMicroelectronics - 3D model - Small Outline Packages - SSO10
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L4986B Details

  • Manufacturer Part Number:

    L4986B

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SSOP-10

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    25 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    7

  • Analog IC - Other Type:

    POWER FACTOR CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    24.5 V

  • Input Voltage-Min:

    10 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G10

  • Length:

    4.9 mm

  • Number of Functions:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -25 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP10,.25,40

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    5.5 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    142 kHz

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

L4986B Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the L4986B is 60V, but it's recommended to keep it below 50V for reliable operation.
  • The output voltage of the L4986B can be calculated using the formula: Vout = Vref x (1 + R2/R1), where Vref is the internal reference voltage (2.5V), R1 and R2 are the resistors connected to the FB pin.
  • The bootstrap capacitor (CBOOT) is used to generate the high-side gate drive voltage for the internal power MOSFET. It's essential for proper operation and should be chosen according to the datasheet recommendations.
  • Yes, the L4986B can be used in a synchronous rectification configuration, but it requires an external low-side MOSFET and a Schottky diode. The datasheet provides a reference design for this configuration.
  • The L4986B has a built-in overcurrent protection (OCP) feature that limits the output current to a safe value. The OCP threshold can be adjusted by connecting a resistor (Rocp) between the OCP pin and GND. The datasheet provides more information on how to set the OCP threshold.

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L4986B 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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