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L4985ATR - STMicroelectronics

Description: CCM PFC controller with High Voltage start-up

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L4985ATR - STMicroelectronics - PCB symbol
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PCB Footprints
L4985ATR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - L5970D
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L4985ATR - STMicroelectronics - 3D model - Small Outline Packages - L5970D
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L4985ATR Details

  • Manufacturer Part Number:

    L4985ATR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOP-8

  • 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-G8

  • Length:

    4.9 mm

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -25 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    4.7 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    71 kHz

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

L4985ATR Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the L4985ATR is 30V, but it's recommended to keep it below 28V for reliable operation.
  • To ensure stability, make sure to follow the recommended layout and component placement guidelines, use a sufficient output capacitor, and add a 10nF capacitor between the VREF and GND pins.
  • The minimum input voltage required for the L4985ATR to operate is 7V, but it's recommended to keep it above 8V for reliable startup and operation.
  • The L4985ATR is rated for operation up to 150°C, but it's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet to ensure reliable operation.
  • The output voltage of the L4985ATR can be calculated using the formula: VOUT = VREF x (1 + R1/R2), where VREF is the internal reference voltage (2.5V), and R1 and R2 are the resistors connected to the VOUT pin.

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L4985ATR 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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