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LM3914VX - Texas Instruments

Description: TEXAS INSTRUMENTS - LM3914VX - IC,LED DISPLAY DRIVER,BARGRAPH,BIPOLAR,LDCC,20PIN,PLASTIC

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LM3914VX - Texas Instruments PCB footprint - Plastic Leaded Chip Carrier - Plastic Leaded Chip Carrier - FN0020A_PLCC20
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3D Models
LM3914VX - Texas Instruments  - 3D model - Plastic Leaded Chip Carrier - FN0020A_PLCC20
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LM3914VX Details

  • Manufacturer Part Number:

    LM3914VX

  • Brand Name:

    Texas Instruments

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    QLCC

  • Package Description:

    LCC-20

  • Pin Count:

    20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    SELECTABLE DOT MODE

  • Data Input Mode:

    PARALLEL

  • Display Mode:

    BAR GRAPH

  • Interface IC Type:

    LED DISPLAY DRIVER

  • JESD-30 Code:

    S-PQCC-J20

  • JESD-609 Code:

    e0

  • Length:

    8.89 mm

  • Moisture Sensitivity Level:

    2A

  • Multiplexed Display Capability:

    NO

  • Number of Digits/Characters:

    10-DIGIT

  • Number of Functions:

    1

  • Number of Segments:

    10

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    QCCJ

  • Package Equivalence Code:

    LDCC20,.4SQ

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER

  • Peak Reflow Temperature (Cel):

    250

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    4.57 mm

  • Supply Voltage-Max:

    20 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    J BEND

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    QUAD

  • Width:

    8.89 mm

LM3914VX Frequently Asked Questions (FAQs)

  • The recommended voltage range for the LM3914VX is 3V to 25V, although it can operate up to 30V with reduced performance.
  • The resistor values can be calculated using the formula: R = (Vcc - Vf) / If, where Vcc is the supply voltage, Vf is the forward voltage drop of the LED, and If is the desired LED current. Typically, 1kΩ to 2kΩ resistors are used for 5V to 12V supplies.
  • Yes, the LM3914VX can be used with a single supply voltage. However, the voltage reference pin (Vref) should be connected to a voltage divider to set the reference voltage to half of the supply voltage.
  • The brightness of the LEDs can be adjusted by changing the value of the current limiting resistors or by using a potentiometer to vary the voltage at the Vref pin.
  • Yes, the LM3914VX can be used with high-brightness LEDs, but the current limiting resistors may need to be adjusted to limit the current to the LED's maximum rating.

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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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