LM2917MX-8/NOPB

Product Overview

Category

The LM2917MX-8/NOPB belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in automotive applications for frequency-to-voltage conversion.

Characteristics

• The LM2917MX-8/NOPB is a precision voltage-to-frequency converter.
• It operates over a wide supply voltage range, from 4V to 40V.
• This IC can convert a signal with a frequency up to 10kHz into a corresponding analog voltage output.
• It offers excellent linearity and low temperature coefficient.

Package

The LM2917MX-8/NOPB comes in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to accurately convert frequency signals into voltage outputs, making it ideal for various automotive applications.

Packaging/Quantity

The LM2917MX-8/NOPB is typically available in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 4V to 40V
• Frequency Input Range: DC to 10kHz
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Package Type: 8-pin SOIC

Detailed Pin Configuration

1. VCC: Supply voltage input
2. GND: Ground reference
3. VIN: Frequency input
4. OUT: Analog voltage output
5. NC: No connection
6. NC: No connection
7. NC: No connection
8. NC: No connection

Functional Features

• Accurate frequency-to-voltage conversion
• Wide operating voltage range
• High linearity and low temperature coefficient
• Easy integration into automotive systems
• Low power consumption

Advantages and Disadvantages

Advantages

• Precise conversion of frequency signals to voltage outputs
• Wide supply voltage range allows for flexibility in various applications
• Excellent linearity ensures accurate measurements
• Low temperature coefficient minimizes errors due to temperature variations
• Easy integration into automotive systems due to compact package size

Disadvantages

• Limited frequency input range (up to 10kHz)
• Requires external components for proper operation
• Not suitable for high-frequency applications

Working Principles

The LM2917MX-8/NOPB operates based on the principle of frequency-to-voltage conversion. It converts the frequency of an input signal into a corresponding analog voltage output. This is achieved through internal circuitry that generates a proportional voltage based on the input frequency. The output voltage can be used for various purposes, such as speed measurement or control in automotive systems.

Detailed Application Field Plans

The LM2917MX-8/NOPB finds extensive use in automotive applications, including:

1. Speedometers: The IC can convert the frequency of a vehicle's wheel rotation into an analog voltage, allowing for accurate speed measurement.
2. Tachometers: By converting the frequency of an engine's RPM signal, the IC enables precise tachometer readings.
3. Fuel Injection Systems: The LM2917MX-8/NOPB can be utilized to measure the frequency of fuel injector pulses, aiding in efficient fuel delivery control.
4. Cruise Control Systems: By converting the frequency of a vehicle's speed signal, the IC assists in maintaining a constant speed.

Detailed and Complete Alternative Models

1. LM2907: Similar to the LM2917MX-8/NOPB, this model offers frequency-to-voltage conversion but with a different pin configuration.
2. LM331: This IC provides frequency-to-voltage conversion with a wider frequency input range and additional features such as adjustable scaling.

In conclusion, the LM2917MX-8/NOPB is a precision voltage-to-frequency converter widely used in automotive applications. Its accurate conversion, wide operating voltage range, and compact package make it an ideal choice for various speed and frequency measurement/control systems. However, its limited frequency input range and external component requirements should be considered when selecting alternative models.