STMicroelectronics
La imagen puede ser una representación.
Consulte las especificaciones para obtener detalles del producto.
ULN2067B
Ver Detalle Hojas de datos

ULN2067B

Product Overview

Category: Integrated Circuit
Use: High-voltage, high-current Darlington transistor array
Characteristics: 50V output voltage, 500mA output current, 2.7kΩ input resistor, 1.5A peak output current, 2.7V to 30V input voltage range
Package: SOIC-16
Essence: Efficient and reliable high-voltage switching
Packaging/Quantity: Tape & Reel (2500 units per reel)

Specifications

  • Output Voltage: 50V
  • Output Current: 500mA
  • Input Resistor: 2.7kΩ
  • Peak Output Current: 1.5A
  • Input Voltage Range: 2.7V to 30V
  • Package Type: SOIC-16

Detailed Pin Configuration

  1. Input 1
  2. Ground
  3. Output 1
  4. Output 2
  5. Output 3
  6. Output 4
  7. Input 2
  8. Input 3
  9. Output 5
  10. Output 6
  11. Output 7
  12. Output 8
  13. Input 4
  14. VCC
  15. Output 9
  16. Output 10

Functional Features

  • High-Voltage and High-Current Switching Capability
  • Built-in Clamp Diodes for Inductive Load Driving
  • TTL/CMOS/PMOS/DTL Compatible Inputs

Advantages and Disadvantages

Advantages: - High output voltage and current capability - Wide input voltage range - Built-in clamp diodes for inductive load driving

Disadvantages: - Higher power dissipation compared to some alternative models - Larger package size compared to some alternatives

Working Principles

The ULN2067B is designed to interface between low-level logic and high-power loads. It consists of high-voltage, high-current Darlington transistor arrays with common emitters. The inputs are pinned out in a manner that allows the user to connect multiple devices in parallel to achieve higher current ratings.

Detailed Application Field Plans

The ULN2067B is commonly used in applications such as industrial control systems, motor control, and solenoid/relay driving. Its ability to handle high-voltage and high-current loads makes it suitable for various automation and control applications.

Detailed and Complete Alternative Models

  1. ULN2003A
    • Output Voltage: 50V
    • Output Current: 500mA
    • Package Type: DIP-16
  2. ULN2803A
    • Output Voltage: 50V
    • Output Current: 500mA
    • Package Type: DIP-18
  3. ULN2068B
    • Output Voltage: 50V
    • Output Current: 1A
    • Package Type: SOIC-16

This completes the English editing encyclopedia entry structure for ULN2067B.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de ULN2067B en soluciones técnicas

  1. What is ULN2067B?

    • ULN2067B is a high-voltage, high-current Darlington transistor array commonly used in applications requiring driving of inductive loads such as relays, solenoids, and stepper motors.

  2. What is the maximum voltage and current rating of ULN2067B?

    • The ULN2067B can handle a maximum voltage of 50V and a continuous output current of 500mA per channel.

  3. How many channels does ULN2067B have?

    • ULN2067B consists of seven channels, each containing a Darlington pair of transistors.

  4. What are the typical applications of ULN2067B?

    • Typical applications include driving various inductive loads such as relays, solenoids, stepper motors, and other high-current peripheral drivers in industrial and automotive systems.

  5. What is the input logic compatibility of ULN2067B?

    • ULN2067B is compatible with TTL, DTL, PMOS, CMOS, and other low-power Schottky TTL circuits.

  6. Can ULN2067B be used for PWM (Pulse Width Modulation) control?

    • Yes, ULN2067B can be used for PWM control to regulate the speed of motors or the intensity of solenoids.

  7. What are the key features of ULN2067B?

    • Some key features include built-in suppression diodes for inductive loads, high-voltage and high-current capability, and thermal shutdown protection.

  8. Is there a recommended heat sink for ULN2067B?

    • It is recommended to use an appropriate heat sink when operating at high currents or in high-temperature environments to ensure proper thermal management.

  9. What are the package options available for ULN2067B?

    • ULN2067B is available in various package options such as PDIP, SOIC, and TSSOP, providing flexibility for different PCB layouts and space constraints.

  10. Are there any application notes or reference designs available for using ULN2067B in technical solutions?

    • Yes, several application notes and reference designs are available from the manufacturer, providing guidance on layout considerations, driving inductive loads, and maximizing the performance of ULN2067B in specific applications.