Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | ULx200xA |
| ProductStatus | Active |
| SwitchType | Relay, Solenoid Driver |
| NumberofOutputs | 7 |
| Ratio-Input:Output | 1:1 |
| OutputConfiguration | Low Side |
| OutputType | NPN |
| Interface | Parallel |
| Voltage-Load | 50V (Max) |
| Voltage-Supply(Vcc/Vdd) | Not Required |
| Current-Output(Max) | 500mA |
| InputType | Inverting |
| OperatingTemperature | -40°C ~ 105°C (TA) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 16-SOIC |
Overview
Description
The ULN2003AIDR is a high-voltage, high-current Darlington transistor array typically used for driving loads such as relays, lamps, and stepper motors. It features seven NPN Darlington pairs that can handle up to 500 mA and 50V per channel, making it suitable for interfacing between TTL/CMOS logic levels and high-power components. The device includes internal clamp diodes for inductive load driving and is commonly used in applications where multiple loads need to be controlled simultaneously.
Operating from a wide range of voltage levels, the ULN2003AIDR is often utilized in projects requiring efficient load management, such as home automation and industrial control systems. Its compact and robust design, often housed in a 16-pin DIP package, allows for easy integration into various electronic circuits. The device’s versatility and reliability make it a popular choice for both hobbyists and professionals needing a straightforward solution for controlling multiple high-power outputs from low-power inputs.
Operating from a wide range of voltage levels, the ULN2003AIDR is often utilized in projects requiring efficient load management, such as home automation and industrial control systems. Its compact and robust design, often housed in a 16-pin DIP package, allows for easy integration into various electronic circuits. The device’s versatility and reliability make it a popular choice for both hobbyists and professionals needing a straightforward solution for controlling multiple high-power outputs from low-power inputs.
Equivalent
The ULN2003AIDR is a Darlington transistor array typically used for driving loads such as relays and stepper motors. Equivalent products include:
1. ULN2003AN
2. ULN2003APG
3. ULN2803A (for 8 channels)
4. TBD62003A
5. Toshiba TD62003APG
These chips offer similar functionality, featuring high-voltage, high-current Darlington transistor arrays with built-in diodes for inductive load protection. Always verify pin configuration and electrical specifications for compatibility with your application.
1. ULN2003AN
2. ULN2003APG
3. ULN2803A (for 8 channels)
4. TBD62003A
5. Toshiba TD62003APG
These chips offer similar functionality, featuring high-voltage, high-current Darlington transistor arrays with built-in diodes for inductive load protection. Always verify pin configuration and electrical specifications for compatibility with your application.
Features
The ULN2003AIDR is a high-voltage, high-current Darlington transistor array. It is commonly used to drive loads such as relays, stepper motors, and LED displays. Key features include:
1. High Voltage and Current Capacity: It supports output current up to 500 mA per channel with a maximum output voltage of 50V.
2. Multiple Channels: It contains seven NPN Darlington pairs, each capable of driving a load.
3. Input Compatibility: The inputs are compatible with TTL and CMOS logic, making it easy to interface with microcontrollers and other digital circuits.
4. Internal Clamping Diodes: Incorporated flyback diodes for inductive load protection, which are essential when driving inductive loads like motors and relays.
5. Wide Operating Temperature Range: It operates efficiently from -20°C to 85°C.
These features make the ULN2003AIDR a versatile and robust choice for applications requiring multiple high-current drivers in a single package.
1. High Voltage and Current Capacity: It supports output current up to 500 mA per channel with a maximum output voltage of 50V.
2. Multiple Channels: It contains seven NPN Darlington pairs, each capable of driving a load.
3. Input Compatibility: The inputs are compatible with TTL and CMOS logic, making it easy to interface with microcontrollers and other digital circuits.
4. Internal Clamping Diodes: Incorporated flyback diodes for inductive load protection, which are essential when driving inductive loads like motors and relays.
5. Wide Operating Temperature Range: It operates efficiently from -20°C to 85°C.
These features make the ULN2003AIDR a versatile and robust choice for applications requiring multiple high-current drivers in a single package.
Pinout
The ULN2003AIDR is a high-voltage, high-current Darlington transistor array capable of driving inductive loads such as relays, solenoids, and DC motors. It is commonly used in interfacing between logic-level devices and higher voltage/current loads in various applications.
The ULN2003AIDR has a total of 16 pins:
- Pins 1 to 7: Input pins (IN1 to IN7) which receive signals from the microcontroller or logic device.
- Pin 8: Ground (GND) pin, which is connected to the common ground of the system.
- Pins 9 to 15: Output pins (OUT1 to OUT7) which connect to the loads being driven by the array.
- Pin 16: Common freewheeling diode pin (COM), which is typically connected to the positive supply voltage of the loads to clamp inductive kickback from inductive loads like relays and solenoids.
Each of the seven channels in the ULN2003AIDR can handle up to 500 mA and is capable of withstanding 50 V, making it suitable for controlling medium-power loads.
The ULN2003AIDR has a total of 16 pins:
- Pins 1 to 7: Input pins (IN1 to IN7) which receive signals from the microcontroller or logic device.
- Pin 8: Ground (GND) pin, which is connected to the common ground of the system.
- Pins 9 to 15: Output pins (OUT1 to OUT7) which connect to the loads being driven by the array.
- Pin 16: Common freewheeling diode pin (COM), which is typically connected to the positive supply voltage of the loads to clamp inductive kickback from inductive loads like relays and solenoids.
Each of the seven channels in the ULN2003AIDR can handle up to 500 mA and is capable of withstanding 50 V, making it suitable for controlling medium-power loads.
Manufacturer
The ULN2003AIDR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. TI is well-known for its analog chips and embedded processors, and it serves a wide range of industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. As a major player in the semiconductor industry, TI focuses on innovation and development of technologies that drive advancements in electronics.
Application
The ULN2003AIDR is a Darlington transistor array commonly used for driving inductive loads such as relays, solenoids, and stepper motors. Its key application areas include:
1. Stepper Motor Control: Often used in printers, scanners, and robotic systems for precise motor control.
2. Relay Driving: Suitable for automating control in home appliances and industrial systems.
3. LED Displays: Used in displays and signage for controlling multiple LEDs.
4. Solenoid Valve Control: Applied in automation systems for controlling flow or pressure.
5. Signal Amplification: Employed in various circuits for signal amplification due to its high current gain.
These applications leverage the ULN2003AIDR's capacity to handle high voltage and current levels safely.
1. Stepper Motor Control: Often used in printers, scanners, and robotic systems for precise motor control.
2. Relay Driving: Suitable for automating control in home appliances and industrial systems.
3. LED Displays: Used in displays and signage for controlling multiple LEDs.
4. Solenoid Valve Control: Applied in automation systems for controlling flow or pressure.
5. Signal Amplification: Employed in various circuits for signal amplification due to its high current gain.
These applications leverage the ULN2003AIDR's capacity to handle high voltage and current levels safely.
Package
The ULN2003AIDR is packaged in a SOIC-16 (Small Outline Integrated Circuit) package, which is a surface-mount technology (SMT) package type. It is designed for ease of use in automated assembly processes and provides a compact footprint for electronic circuit design.
