Texas Instruments
Изображение может быть репрезентативным.
Подробную информацию о продукте см. в характеристиках.
LM2917MX-8
Посмотреть детали Таблицы данных

LM2917MX-8

Product Overview

Category

The LM2917MX-8 belongs to the category of frequency-to-voltage converters.

Use

It is commonly used for converting a frequency input into a corresponding analog voltage output.

Characteristics

  • Wide operating frequency range
  • High linearity
  • Low power consumption
  • Easy to use

Package

The LM2917MX-8 comes in an 8-pin SOIC package.

Essence

The essence of the LM2917MX-8 lies in its ability to accurately convert frequency signals to voltage, making it suitable for various applications.

Packaging/Quantity

The LM2917MX-8 is typically available in reels with a quantity of 2500 units per reel.

Specifications

  • Operating Voltage: 4V to 18V
  • Frequency Input Range: 0Hz to 10kHz
  • Output Voltage Range: 0V to VCC
  • Linearity: ±0.3% (typical)

Detailed Pin Configuration

  1. VIN-: Negative input for the frequency signal
  2. VIN+: Positive input for the frequency signal
  3. GND: Ground connection
  4. VOUT: Analog voltage output
  5. VCC: Supply voltage
  6. BYPASS: Bypass capacitor connection
  7. NC: No internal connection
  8. NC: No internal connection

Functional Features

  • Frequency-to-voltage conversion
  • Adjustable output scaling
  • Low external component count

Advantages

  • Wide operating frequency range allows for versatile applications
  • High linearity ensures accurate voltage output
  • Low power consumption makes it energy-efficient

Disadvantages

  • Limited frequency input range compared to some other models
  • Requires careful consideration of external components for optimal performance

Working Principles

The LM2917MX-8 operates by utilizing an internal oscillator and counter to convert the input frequency into a proportional analog voltage output. This voltage output is linearly scaled based on the frequency input.

Detailed Application Field Plans

The LM2917MX-8 finds extensive use in automotive applications for tachometer and speedometer circuits, as well as in frequency-based control systems for industrial equipment. Additionally, it is employed in audio equipment for frequency measurement and control.

Detailed and Complete Alternative Models

  • LM2907: Similar functionality with different pin configuration
  • LM331: Frequency-to-voltage converter with extended frequency range

In conclusion, the LM2917MX-8 offers a reliable and efficient solution for frequency-to-voltage conversion, particularly in automotive and industrial applications. Its wide operating frequency range and high linearity make it a preferred choice for engineers seeking precision and versatility in their designs.

[Word Count: 398]

Перечислите 10 распространенных вопросов и ответов, связанных с применением LM2917MX-8 в технических решениях.

  1. What is the LM2917MX-8?

    • The LM2917MX-8 is a frequency-to-voltage converter IC designed for use in automotive tachometer applications.

  2. What is the operating voltage range of the LM2917MX-8?

    • The operating voltage range of the LM2917MX-8 is typically 4V to 18V.

  3. How does the LM2917MX-8 convert frequency to voltage?

    • The LM2917MX-8 uses an internal divider and charge pump to convert the input frequency to a proportional output voltage.

  4. What is the maximum input frequency supported by the LM2917MX-8?

    • The LM2917MX-8 can typically handle input frequencies up to 10 kHz.

  5. Can the LM2917MX-8 be used in non-automotive applications?

    • While it's primarily designed for automotive use, the LM2917MX-8 can also be applied in other frequency-to-voltage conversion scenarios.

  6. What are the typical applications of the LM2917MX-8?

    • Typical applications include automotive tachometers, frequency-to-voltage converters, and RPM measurement systems.

  7. What is the output voltage range of the LM2917MX-8?

    • The output voltage range is typically 0V to VCC (supply voltage).

  8. Does the LM2917MX-8 require external components for operation?

    • Yes, the LM2917MX-8 requires external capacitors and resistors for proper operation.

  9. What are the key features of the LM2917MX-8?

    • Some key features include low stand-by current, wide input frequency range, and high input impedance.

  10. Are there any specific layout considerations when using the LM2917MX-8?

    • It's important to follow the recommended layout guidelines provided in the datasheet to minimize noise and ensure proper performance.

Feel free to ask if you need further assistance with the LM2917MX-8 or any related technical solutions!