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LM3914VX

The product LM3914VX is a LED display driver in a PQCC20 package, constructed from plastic material, and designed in LCC-20 format

Inventory:6,386

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Overview of LM3914VX

The LM3914VX is a monolithic integrated circuit optimized for driving LED, LCD, or vacuum fluorescent displays. It provides excellent performance for various applications, including analog and digital signal switching.

Pinout

The LM3914VX pinout refers to the configuration and function of each pin in its PLCC-20 package. The diagram provided by Texas Instruments shows the layout of the pins when viewed from the top down with pins named sequentially. Each pin on the LM3914VX has a specific role such as power supply input, ground connection, or signal interface. Designers and engineers must refer to the datasheet provided by Texas Instruments to get accurate information regarding each pin's function and electrical characteristics.

Features

  • Monolithic integrated circuit: The LM3914VX is a single-chip solution that can operate as an LED, LCD, or vacuum fluorescent display driver.
  • High-speed operation: It can drive up to 10 LEDs or LCDs in either bar graph or dot mode.
  • Built-in voltage reference: The LM3914VX has a built-in voltage reference, making it possible to operate the display driver over a wide range of supply voltages (3V to 35V).

Applications

  • Audio level indicators: The LM3914VX can be used in audio applications to visualize signal levels.
  • Voltage monitors: It is commonly used as a voltage monitor in battery-powered devices.
  • Battery charge indicators: The LM3914VX can display the level of battery charge for monitoring purposes.
  • LED bar graph displays: It is widely used in consumer electronics and industrial equipment to visualize analog signal levels.

Advantages and Disadvantages

Advantages:

  • Simple integration: The LM3914VX is a single-chip solution, making it easy to integrate into designs.
  • Flexibility: It can operate with various types of displays (LED, LCD, vacuum fluorescent) and in different modes (bar graph, dot).

Disadvantages:

  • Limited scalability: The LM3914VX is designed to drive small LED arrays or single-line displays.

Frequently Asked Questions

Q: What is the maximum number of LEDs or LCDs the LM3914VX can drive?
A: The LM3914VX can drive up to 10 LEDs or LCDs in either bar graph or dot mode.

Q: Can I use the LM3914VX as an audio level indicator for high-frequency signals?
A: Yes, the LM3914VX can operate with high-speed input signals and is suitable for audio-level indicator applications.

Q: Is the LM3914VX compatible with digital signal processing modules?
A: The LM3914VX can be integrated into designs using digital signal processing modules, making it applicable to a wide range of applications.

Q: What is the suitable operating supply voltage for the LM3914VX?
A: The LM3914VX operates over a wide range of supply voltages (3V to 35V) with the built-in voltage reference.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Pbfree Code No Part Life Cycle Code Active
Ihs Manufacturer ROCHESTER ELECTRONICS LLC Part Package Code QLCC
Package Description PLASTIC, LCC-20 Pin Count 20
Reach Compliance Code Additional Feature SELECTABLE DOT MODE
Data Input Mode ANALOG 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 Functions 1 Number of Segments 10
Number of Terminals 20 Operating Temperature-Max 70 °C
Operating Temperature-Min Package Body Material PLASTIC/EPOXY
Package Code QCCJ Package Shape SQUARE
Package Style CHIP CARRIER Peak Reflow Temperature (Cel) 250
Qualification Status COMMERCIAL 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
Time@Peak Reflow Temperature-Max (s) 30 Width 8.89 mm

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packageimg

LM3914VX

The product LM3914VX is a LED display driver in a PQCC20 package, constructed from plastic material, and designed in LCC-20 format

Inventory:

6,386