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LT1248CS#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LT1248CS#PBF - PFC Controller IC, 11.5 V to 25 V & 8.5 mA Supply, 11.5 V Lockout, 96 % Duty Cycle, 300 kHz, SOIC-16

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LT1248CS#PBF - Analog Devices - PCB symbol
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LT1248CS#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S Package 16-Lead Plastic Small Outline (Narrow .150 Inch)
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LT1248CS#PBF - Analog Devices - 3D model - Small Outline Packages - S Package 16-Lead Plastic Small Outline (Narrow .150 Inch)
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LT1248CS#PBF Details

  • Manufacturer Part Number:

    LT1248CS#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    0.150 INCH, PLASTIC, SO-16

  • Pin Count:

    16

  • Manufacturer Package Code:

    05-08-1610 (S16)

  • 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

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    9.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • 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:

    300 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

LT1248CS#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1248CS involves keeping the input and output traces short and wide, using a solid ground plane, and placing the input and output capacitors close to the device. Additionally, it's recommended to use a low-ESR capacitor for the output capacitor to minimize ringing.
  • To ensure stability in high-gain configurations, it's essential to follow the recommended compensation network values and layout guidelines. Additionally, using a low-ESR output capacitor and a high-quality input capacitor can help improve stability. It's also recommended to add a small capacitor (e.g., 10pF) between the output and the inverting input to improve stability.
  • The maximum power dissipation of the LT1248CS is dependent on the package type and the ambient temperature. For the CS package, the maximum power dissipation is approximately 1.4W. To calculate the power dissipation, use the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current.
  • Yes, the LT1248CS can be used as an op-amp, but with some limitations. The device is optimized for high-speed, high-gain applications, and its op-amp performance may not be as good as a dedicated op-amp. The LT1248CS has a higher noise floor and lower open-loop gain compared to a dedicated op-amp. However, it can still be used in non-critical op-amp applications, such as buffering or amplifying low-frequency signals.
  • To protect the LT1248CS from overvoltage and overcurrent conditions, use a voltage regulator or a voltage limiter to limit the input voltage to the recommended maximum value. Additionally, use a current-limiting resistor or a fuse in series with the output to prevent excessive output current. It's also recommended to use a TVS (transient voltage suppressor) diode to protect the device from voltage transients.

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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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