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LT1249CS8#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LT1249CS8#PBF - PFC Controller IC, 11.5 V to 25 V & 9 mA Supply, 11.5 V Lockout, 96 % Duty Cycle, 125 kHz, SOIC-8

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LT1249CS8#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S8-ren3
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LT1249CS8#PBF Details

  • Manufacturer Part Number:

    LT1249CS8#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    0.150 INCH, PLASTIC, SO-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    05-08-1610 (S8)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    POWER FACTOR CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    25 V

  • Input Voltage-Min:

    11.5 V

  • Input Voltage-Nom:

    18 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    100 °C

  • Output Current-Max:

    1.5 A

  • Output Voltage-Nom:

    7.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • 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):

    12 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    100 kHz

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

LT1249CS8#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1249CS8 involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing bypass capacitors close to the device. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
  • To ensure stability, make sure to follow the recommended compensation network, use a minimum output capacitance of 100nF, and avoid capacitive loads. Also, ensure that the device is operated within its recommended operating conditions and that the input and output voltages are within the specified ranges.
  • The maximum power dissipation of the LT1249CS8 is dependent on the package type and the ambient temperature. For the SO-8 package, the maximum power dissipation is 1.4W at 25°C ambient temperature. However, it is recommended to derate the power dissipation based on the ambient temperature and the thermal resistance of the package.
  • The LT1249CS8 is rated for operation up to 125°C junction temperature. However, the device's performance and reliability may degrade at high temperatures. It is recommended to derate the device's performance and ensure proper thermal management to prevent overheating.
  • The LT1249CS8 has built-in overcurrent protection, but it is still recommended to add external protection circuitry to prevent damage from overvoltage and overcurrent conditions. This can include adding voltage clamps, current limiters, and fuses to the input and output pins.

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LT1249CS8#PBF Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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