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LT3420EMS#TRPBF - Analog Devices

Description: Photoflash Capacitor Chargers with Automatic Refresh

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LT3420EMS#TRPBF - Analog Devices - PCB symbol
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LT3420EMS#TRPBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - MS Package 10-Lead Plastic MSOP_2023-1
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LT3420EMS#TRPBF - Analog Devices - 3D model - Small Outline Packages - MS Package 10-Lead Plastic MSOP_2023-1
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LT3420EMS#TRPBF Details

  • Manufacturer Part Number:

    LT3420EMS#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    PLASTIC, MSOP-10

  • Pin Count:

    10

  • Manufacturer Package Code:

    05-08-1661

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Analog IC - Other Type:

    ANALOG CIRCUIT

  • JESD-30 Code:

    S-PDSO-G10

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.1 mm

  • Supply Voltage-Max (Vsup):

    16 V

  • Supply Voltage-Min (Vsup):

    2.5 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

LT3420EMS#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout is crucial for the LT3420'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. Also, keep the switching node (SW pin) away from sensitive analog nodes.
  • The inductor selection depends on the output voltage, current, and frequency. A good starting point is to use an inductor with a saturation current rating above the peak current, and a DC resistance (DCR) that is low enough to minimize losses. Analog Devices provides an inductor selection guide in the datasheet.
  • The maximum junction temperature (Tj) for the LT3420 is 125°C. However, it's recommended to operate the device at a lower temperature to ensure reliability and minimize thermal-related failures. A good target is to keep Tj below 100°C.
  • The LT3420 is rated for operation up to 85°C ambient temperature. However, if you need to operate the device in a higher temperature environment, you can consider using a heat sink or a thermal interface material to reduce the junction temperature. Consult with Analog Devices' application engineers for guidance.
  • To ensure stability, follow the recommended component values and PCB layout in the datasheet. Also, make sure to use a compensation network (R3, C3, and R4) as shown in the datasheet. If you're still experiencing oscillations, consult with Analog Devices' application engineers for customized support.

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LT3420EMS#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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