ULN2803ADWRG4

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Texas Instruments ULN2803ADWRG4

HIGH-RELIABILITY-COMPONENTS
Part No.:
ULN2803ADWRG4
Manufacturer:
Texas Instruments
Package:
18-SOIC (0.295, 7.50mm Width)
Datasheet:
ULN2803ADWRG4.pdf
Description:
TRANS 8NPN DARL 50V 0.5A 18SOIC
In Stock:
2558
Quantity:
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    ULN2803ADWRG4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ULN2803ADWRG4 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for ULN2803ADWRG4 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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    ULN2803ADWRG4 informationULN2803ADWRG4 information

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    ULN2803ADWRG4 Typical application Circuitry

    ULN2803ADWRG4

    The ULN2803ADWRG4 is an integrated circuit that functions as a Darlington transistor array. It is primarily designed for driving high-voltage and high-current loads, and is commonly used in applications that require interfacing lower-power logic signals with higher-power loads.

    Key Features of the ULN2803ADWRG4:

    1. Eight Darlington Pairs: The ULN2803ADWRG4 contains eight NPN Darlington pairs, which allows it to control multiple outputs.

    2. High-Voltage Output: It can handle up to 50V across its outputs.

    3. High Current Handling: Capable of driving up to 500mA per channel.

    4. Built-In Suppression Diodes: These diodes provide protection against voltage spikes, especially useful when driving inductive loads.

    Application Scenarios for the ULN2803ADWRG4:

    - Driving Relays or Solenoids: In control systems like home automation or industrial machinery.

    - LED Displays: For controlling large LED arrays in signage.

    - Stepper Motor Control: In applications such as 3D printers, CNC machines, or robotic arms.

    Specific Application Scenario: Controlling Relays in an Industrial Automation System

    In an industrial automation system, the ULN2803ADWRG4 can be used to control multiple relays for operating various machinery.

    Detailed Circuit Connection for the ULN2803ADWRG4:

    1. Microcontroller Interface:

    - Connect the input pins (1IN-8IN) of the ULN2803ADWRG4 to the output pins of a microcontroller or PLC (Programmable Logic Controller).

    2.Output to Relays:

    - Attach the output pins (1OUT-8OUT) of the ULN2803ADWRG4 to the coils of the relays.

    3. Power Supply:

    - Connect the common pin (COM) of the ULN2803ADWRG4 to the positive side of the power supply suitable for the relays.

    4. Grounding:

    - Ensure the ground of the ULN2803ADWRG4 is connected to the system's ground for stability and noise reduction.

    Design Considerations with the ULN2803ADWRG4:

    1. Load Current Specifications: Each relay's current requirement should not exceed the 500mA limit per channel of the ULN2803ADWRG4.

    2. Voltage Compatibility: The voltage levels applied should be compatible with both the ULN2803ADWRG4 and the relays.

    3. Heat Dissipation: If driving multiple channels simultaneously at high currents, consider additional heat sinking for the ULN2803ADWRG4.

    4. Signal Clarity: Ensure clear and stable signal transmission from the microcontroller/PLC to the ULN2803ADWRG4.

    5. Protection Features: Additional protection like overvoltage and transient suppression may be necessary for the ULN2803ADWRG4 and the overall system.

    6. PCB Layout: Proper PCB layout is crucial to minimize interference and ensure efficient signal and power flow.

    Incorporating the ULN2803ADWRG4 in an industrial automation system for controlling relays enhances the ability to manage multiple high-power devices efficiently, thus contributing to the overall system's performance and reliability, provided these design guidelines are carefully followed.

    ULN2803ADWRG4 FAQ

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    3. Are the ULN2803ADWRG4 price and inventory displayed accurate?

    The price and inventory of ULN2803ADWRG4 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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    Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

    6. What is the process for return or replacement of ULN2803ADWRG4?

    All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ULN2803ADWRG4 we delivered, we will accept the replacement or return of the ULN2803ADWRG4 only when all of the below conditions are fulfilled:

    (1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

    (2)We are informed of the defect described above within 90 days after the delivery of ULN2803ADWRG4.

    (3)The PartNo is unused and only in the original unpacked packaging.

    Two processes to return the products:

    (1)Inform us within 90 days

    (2)Obtain Requesting Return Authorizations

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