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
- 90-day after-sales guarantee
- 365 Days Quality Guarantee
- Genuine Product Guarantee
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Part Number : LM3914VX
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Package/Case : PLCC-20
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Manufacturer : TI
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Components Classification : Display Drivers
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Datesheet : LM3914VX DataSheet (PDF)
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Series : LM3914
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 |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy ?
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package ?
Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.
Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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Payment ?
For example, channels like VISA,MasterCard,Western Union,PayPal,MoneyGram,Rakuten Pay and more.
If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

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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
Warranty & Returns
After Sales Service
What after-sales service can be provided?
We provide an extended quality assurance period of 365 days for all components we offer. If a return or exchange becomes essential, kindly adhere to these guidelines:
·Initiate the request within 90 days after the item's shipment date.
·Coordinate the return or exchange with our team.
·Keep the items in their original condition as delivered.
·Please be aware that the feasibility of returning or exchanging items is contingent upon an evaluation of their actual state upon return.
Shipping
What channels of transportation of goods does the website support?
We usually send out our orders during business days using FedEx, SF, UPS, or DHL. We're also here to assist with alternative shipping options. Should you require additional information about shipping particulars or expenses, please don't hesitate to get in touch with us.







Package
How to ensure that the parts will be intact during transportation?
The items we ship will be packaged in anti-static bags, ensuring ESD anti-static protection, while the outer packaging boasts exceptional durability and sealing. We offer packaging options like Tape and Reel, Cut Tape, Tube, or Tray to suit your needs.




Payment
Which payment methods can be used to pay for goods
Accepted payment methods commonly encompass VISA, MasterCard, UnionPay, Western Union, PayPal, and various other options.
Should you have a particular payment preference or wish to seek information on rates and other specifics, please feel free to reach out to us.




