ULN2003AIN

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ULN2003AIN

IC PWR RELAY 7NPN 1:1 16DIP

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Spezifikationen

Series ULx200xA
Part Status Obsolete
Operating Temperature -40°C ~ 105°C (TA)
Mounting Type Through Hole
Package / Case 16-DIP (0.300", 7.62mm)
Supplier Device Package 16-PDIP
Base Product Number ULN2003

Übersicht

Description

The ULN2003AIN is a high-voltage, high-current Darlington transistor array designed for driving inductive loads such as motors, relays, and solenoids. It features seven open-collector outputs, allowing it to control multiple devices simultaneously while providing isolation between the logic input and the output load. Each output can handle up to 500mA of current and withstand voltages up to 50V, making it suitable for various applications in robotics, automation, and industrial control systems.
The ULN2003AIN integrates built-in flyback diodes to protect against voltage spikes generated by inductive loads when switched off, enhancing reliability. The device is often used in conjunction with microcontrollers or digital logic circuits, where it acts as an interface to control high-power devices with low-power signals. Its compact DIP package and ease of use make it a popular choice among engineers and hobbyists alike.

Features

The ULN2003AIN is a versatile integrated circuit primarily used for driving inductive loads such as relays, stepper motors, and solenoids. Key features include:
1. Darlington Pair Configuration: It consists of seven high-voltage, high-current Darlington pairs, enabling high current gain.
2. Output Current: Each output can handle up to 500 mA, allowing control of various loads.
3. Voltage Range: Operates with a wide supply voltage range from 5V to 50V.
4. Built-in Flyback Diodes: Integrated protection diodes for inductive kickback, safeguarding the circuit.
5. Logic Level Inputs: Compatible with TTL and CMOS logic levels, facilitating easy interfacing with microcontrollers.
6. Thermal Protection: Designed with thermal shutdown features to prevent overheating.
7. Packaging: Available in multiple package types, including DIP and SOIC, for flexible mounting options.
The ULN2003AIN is ideal for applications requiring control of high-power devices through low-power digital signals.

Package

The ULN2003AIN is typically available in a DIP-16 (Dual In-line Package) configuration, which features 16 pins arranged in two rows.

Pinout

The ULN2003AIN is a 7-channel Darlington driver IC with a 16-pin Dual In-Line Package (DIP) configuration.
Pin Count: 16 pins.
Functions:
- Pins 1-7: Inputs (IN1 to IN7) - These pins receive signals to control the corresponding output channels.
- Pins 8-15: Outputs (OUT1 to OUT7) - These pins provide the output for driving loads, such as motors or relays.
- Pin 9: Common (COM) - Connects to a positive voltage to provide protection for the output transistors when driving inductive loads.
- Pin 16: Ground (GND) - Connects to the circuit ground.
The ULN2003AIN allows interfacing with low-level control signals to switch higher current loads, making it suitable for driving small motors, relays, and LEDs in various applications.

Manufacturer

The ULN2003AIN is manufactured by Texas Instruments, a well-known American technology company. Texas Instruments (TI) specializes in designing and manufacturing semiconductors and various integrated circuits. The company is particularly recognized for its analog and digital signal processing products, as well as microcontrollers and other embedded systems. Founded in 1930, TI serves a wide range of industries, including automotive, communications, computing, and industrial applications. The ULN2003AIN is a popular Darlington transistor array used in interfacing and driving applications, particularly for controlling motors and other loads.

Application

The ULN2003AIN is primarily used in applications involving driving inductive loads such as stepper motors, relays, solenoids, and lamps. It serves as a high-voltage, high-current Darlington transistor array, enabling control of multiple outputs from microcontrollers. Common areas include robotics, automation systems, and industrial control circuits, where it facilitates the switching of larger loads than the controller can handle directly.

Equivalent

The ULN2003AIN is equivalent to the ULN2003, ULN2003A, and ULN2003B. These chips are all part of the ULN200x series and serve as relay drivers, featuring multiple Darlington transistor arrays. They can typically replace each other in applications requiring control of inductive loads. Always check specific pin configurations and electrical characteristics when substituting.

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