Overview
The LM3914N-1/NOPB is an integrated circuit designed by Texas Instruments, primarily used as a dot/bar display driver. This component is part of the LM3914 series and is packaged in a 18-pin DIP (Dual In-Line Package) format. Although the LM3914N-1/NOPB is currently listed as obsolete, it was widely used in various display applications due to its versatility and robust features.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM3914N-1/NOPB |
| Package Type | DIP-18 |
| Display Type | LED, LCD, Vacuum Fluorescent (VF) |
| Operating Temperature Range | 0 to 70°C |
| Supply Voltage Range | 1.35 to 25 VDC |
| Output Current | Up to 30 mA |
| Part Status | Obsolete |
Key Features
The LM3914N-1/NOPB offers several key features that made it a popular choice for display applications:
- Multi-Display Capability: Supports LED, LCD, and Vacuum Fluorescent displays.
- Wide Supply Voltage Range: Operates from 1.35 to 25 VDC, making it versatile for various power supply conditions.
- High Output Current: Can drive up to 30 mA per output, suitable for a variety of display elements.
- Temperature Stability: Reliable operation over a temperature range of 0 to 70°C.
Applications
The LM3914N-1/NOPB was commonly used in various applications requiring dot or bar display drivers, such as:
- Audio Level Indicators: Used in audio equipment to display signal levels.
- Industrial Control Panels: Employed in control panels to display status or measurement data.
- Consumer Electronics: Found in consumer devices like amplifiers, mixers, and other audio/video equipment.
Q & A
- What is the LM3914N-1/NOPB used for?
The LM3914N-1/NOPB is used as a dot/bar display driver for LED, LCD, and Vacuum Fluorescent displays.
- What is the package type of the LM3914N-1/NOPB?
The LM3914N-1/NOPB is packaged in a 18-pin DIP (Dual In-Line Package) format.
- What is the operating temperature range of the LM3914N-1/NOPB?
The operating temperature range is from 0 to 70°C.
- What is the supply voltage range for the LM3914N-1/NOPB?
The supply voltage range is from 1.35 to 25 VDC.
- How much current can the LM3914N-1/NOPB drive per output?
The LM3914N-1/NOPB can drive up to 30 mA per output.
- Is the LM3914N-1/NOPB still in production?
No, the LM3914N-1/NOPB is listed as obsolete.
- What types of displays does the LM3914N-1/NOPB support?
The LM3914N-1/NOPB supports LED, LCD, and Vacuum Fluorescent displays.
- Where can I find replacement parts for the LM3914N-1/NOPB?
You may need to consult with Texas Instruments or other component suppliers for replacement options, as the LM3914N-1/NOPB is obsolete.
- What are some common applications of the LM3914N-1/NOPB?
Common applications include audio level indicators, industrial control panels, and consumer electronics.
- How do I ensure compatibility when replacing the LM3914N-1/NOPB?
Ensure the replacement part has similar specifications, such as supply voltage range, output current, and display type compatibility.
