ULN2803APG

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ULN2803APG

Toshiba

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  • Mfr. Parte #ULN2803APG
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Especificaciones

Descripción general

Description

The ULN2803APG is an integrated circuit that contains eight high-voltage, high-current Darlington transistor arrays. It is commonly used to interface between low-level logic signals and higher-voltage loads, such as motors, relays, and lamps. Each channel can handle up to 500 mA of output current and up to 50 V of output voltage, making it suitable for various switching applications.
The ULN2803APG features built-in flyback diodes that protect the circuit from voltage spikes when driving inductive loads. This component typically comes in a 18-pin DIP (Dual In-line Package) form factor, facilitating easy integration into electronic designs.
Applications include automation systems, robotics, and any scenario where a microcontroller needs to control high-power devices. Its robust design and reliability make it a popular choice for engineers and hobbyists alike.

Features

The ULN2803APG is an octal high-voltage, high-current Darlington transistor array. Key features include:
1. Eight Channels: Contains eight independent Darlington pairs for driving loads.
2. High Voltage Capability: Supports a voltage range up to 50V.
3. High Current Output: Each channel can handle up to 500mA, suitable for driving relays, motors, and LEDs.
4. Built-in Flyback Diodes: Protects against back EMF when driving inductive loads, enhancing reliability.
5. Common Emitter Configuration: Simplifies interfacing with low-voltage logic circuits, enabling the control of higher voltage loads.
6. Wide Operating Temperature: Functional across a temperature range of -40°C to +85°C.
7. TTL Compatibility: Compatible with TTL and CMOS logic levels, making it versatile for various applications.
8. Compact DIL Package: Available in a standard 18-pin DIP package, facilitating easy integration into electronic designs.
The ULN2803APG is commonly used in applications such as relay drivers, motor drivers, and LED lighting.

Package

The ULN2803APG is typically packaged in a 18-pin DIP (Dual In-line Package) format. It features a compact design suitable for through-hole mounting and is commonly used for driving loads such as relays and motors.

Pinout

The ULN2803APG is an octal high-voltage, high-current Darlington transistor array. It features a total of 18 pins. The pin configuration includes:
1. Inputs (Pins 1-8): These are the input pins (1A to 8A) where control signals are applied. Each input corresponds to a Darlington pair output.
2. Common pin (Pin 9): This is typically connected to the positive voltage supply (V+), which is used for driving loads.
3. Outputs (Pins 10-17): These output pins (1Y to 8Y) connect to the load. When the corresponding input pin is activated, the output pin will turn on and sink current.
4. Pin 18: Ground pin (GND), which is connected to the circuit ground.
The ULN2803APG is commonly used for interfacing low-voltage logic to higher-voltage loads, such as motors, relays, and lamps.

Manufacturer

The ULN2803APG is manufactured by Texas Instruments, a well-known company in the semiconductor and electronics industry. Texas Instruments (TI) specializes in designing and manufacturing analog and embedded processing chips, as well as digital signal processors and microcontrollers. Founded in 1930, TI is recognized for its innovation in technology and serves various sectors, including automotive, industrial, consumer electronics, and communication. The ULN2803APG is a high-voltage, high-current Darlington transistor driver, commonly used in applications requiring the control of high-current loads such as relays, lamps, and motors.

Application

The ULN2803APG is a high-voltage, high-current Darlington transistor array commonly used in interfacing between low-voltage digital logic and high-power loads. Application areas include driving relays, lamps, motors, stepper motors, and other inductive loads in industrial automation, robotics, and consumer electronics. It is also used in LED driving and for controlling multiple devices in embedded systems.

Equivalent

The ULN2803APG is commonly used as a Darlington transistor array. Equivalent products include:
1. ULN2003A
2. ULN2803A
3. ULN2903A
4. TC4469
5. MAX6966
These alternatives may have different characteristics, such as voltage ratings or output configurations, so it's essential to check the datasheet for specific applications.

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