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LT8708EUHG#TRPBF - Analog Devices

Description: 80V Synchronous 4-Switch Buck-Boost DC/DC Controller with Bidirectional Capability

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LT8708EUHG#TRPBF - Analog Devices - PCB symbol
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LT8708EUHG#TRPBF - Analog Devices PCB footprint - Other - Other - LFCSP:LEADFRM CHIP SCALE_2023-4
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LT8708EUHG#TRPBF - Analog Devices - 3D model - Other - LFCSP:LEADFRM CHIP SCALE_2023-4
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LT8708EUHG#TRPBF Details

  • Manufacturer Part Number:

    LT8708EUHG#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-40

  • Pin Count:

    40

  • Manufacturer Package Code:

    05-08-1528

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2018-06-13

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Additional Feature:

    OUTPUT VOLATGE RANGE IS 1.3 TO 80V

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    80 V

  • Input Voltage-Min:

    2.8 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PQCC-N40

  • JESD-609 Code:

    e3

  • Length:

    8 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    40

  • Operating Temperature-Max:

    125 °C

  • Output Current-Max:

    0.00012 A

  • Output Voltage-Max:

    80 V

  • Output Voltage-Min:

    1.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    QCCN

  • Package Equivalence Code:

    LCC40,.2X.32,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    400 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    5 mm

LT8708EUHG#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout is crucial for the LT8708EUHG's performance. Analog Devices recommends a 4-layer board with a solid ground plane, and to keep the input and output capacitors close to the IC. Additionally, the feedback network should be routed away from the input and output traces to minimize noise coupling.
  • The input and output capacitors should be selected based on the operating frequency, output voltage, and ripple current requirements. A good starting point is to use X7R or X5R ceramic capacitors with a voltage rating of at least 1.5 times the output voltage. The capacitance value should be chosen to ensure that the impedance is low enough to filter out the switching frequency.
  • The LT8708EUHG is rated for operation from -40°C to 125°C ambient temperature. However, the junction temperature should not exceed 150°C to ensure reliable operation.
  • The LT8708EUHG has a built-in overcurrent protection feature that can be enabled by connecting a resistor from the OC pin to the GND pin. The value of the resistor determines the overcurrent threshold. Additionally, an external current sense resistor can be used to monitor the output current and implement more sophisticated overcurrent protection schemes.
  • Yes, the LT8708EUHG is qualified for automotive and high-reliability applications. It meets the requirements of the AEC-Q100 standard and is available in a variety of grades, including the automotive-grade 'H' grade, which is qualified for operation from -40°C to 150°C.

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LT8708EUHG#TRPBF 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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