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LM3421Q1MH/NOPB - Texas Instruments

Description: N-Channel Controllers for Constant Current LED Drivers

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LM3421Q1MH/NOPB - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PWP0016A-2021
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LM3421Q1MH/NOPB - Texas Instruments  - 3D model - Small Outline Packages - PWP0016A-2021
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LM3421Q1MH/NOPB Details

  • Manufacturer Part Number:

    LM3421Q1MH/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Package Description:

    HTSSOP-16

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    SEATED HGT-NOM

  • Data Input Mode:

    SERIAL

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Multiplexed Display Capability:

    NO

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Segments:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    CONSTANT-CURRENT

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    1.1 mm

  • Supply Voltage-Max:

    75 V

  • Supply Voltage-Min:

    4.5 V

  • Supply Voltage-Nom:

    14 V

  • Supply Voltage1-Max:

    75 V

  • Supply Voltage1-Min:

    4.5 V

  • Supply Voltage1-Nom:

    14 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

  • fmax-Min:

    2 MHz

LM3421Q1MH/NOPB Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the LM3421Q1MH/NOPB datasheet, which includes a thermal pad connected to a copper plane on the PCB to dissipate heat. Additionally, it is recommended to use a 2-ounce copper PCB and to keep the thermal pad away from other components to minimize thermal resistance.
  • To ensure reliable startup and shutdown, it is recommended to use a soft-start circuit to limit the inrush current during startup, and to use a voltage supervisor or reset IC to monitor the output voltage and reset the system during power-up and power-down sequences.
  • The maximum output capacitance that can be used with the LM3421Q1MH/NOPB is not explicitly stated in the datasheet, but it is generally recommended to use a maximum of 10uF to 22uF of output capacitance to ensure stability and prevent oscillations.
  • To protect the LM3421Q1MH/NOPB from input voltage transients and surges, it is recommended to use a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit at the input to limit the voltage to within the recommended operating range.
  • The recommended input filter configuration for the LM3421Q1MH/NOPB is a pi-filter (L-C-R) or an LC filter with a ferrite bead or a common-mode choke to filter out high-frequency noise and ripple.

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LM3421Q1MH/NOPB Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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