What is the Additional Feature ?

Name: ULN2803ADWG4
Brand: Texas Instruments
SKU: ULN2803ADWG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments ULN2803ADWG4

Part No.:: ULN2803ADWG4

Manufacturer:: Texas Instruments

Package:: 18-SOIC (0.295, 7.50mm Width)

Datasheet:: ULN2803ADWG4.pdf

Description:: TRANS 8NPN DARL 50V 0.5A 18SO

In Stock:: 2837

Quantity:: Add To Cart

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ULN2803ADWG4 Specifications

Packaging:
Tube
Series:
Automotive, AEC-Q100
ProductStatus:
Discontinued at Mosen
TransistorType:
8 NPN Darlington
Current-Collector(Ic)(Max):
500mA
Voltage-CollectorEmitterBreakdown(Max):
50V
VceSaturation(Max)@IbIc:
1.6V @ 500µA, 350mA
Current-CollectorCutoff(Max):
-
DCCurrentGain(hFE)(Min)@IcVce:
-
Power-Max:
-
Frequency-Transition:
-
OperatingTemperature:
-40°C ~ 85°C (TA)
MountingType:
Surface Mount

ULN2803ADWG4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ULN2803ADWG4 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 ULN2803ADWG4 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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ULN2803ADWG4 information

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ULN2803ADWG4 Typical application Circuitry

ULN2803ADWG4

The ULN2803ADWG4 is an integrated circuit known as a Darlington transistor array. It's primarily used for driving high-current loads with a high-voltage output, making it ideal for interfacing with microcontrollers or logic systems that cannot provide sufficient current or voltage on their own.

Key Features of the ULN2803ADWG4:

1. Multiple Darlington Transistor Pairs: The ULN2803ADWG4 contains eight Darlington pairs for driving multiple outputs.

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

3. High Voltage Tolerance: It can handle up to 50V across its outputs.

4. Built-In Clamp Diodes: These provide protection against voltage spikes, particularly useful when driving inductive loads.

Application Scenarios for the ULN2803ADWG4:

- Motor Control: In applications such as stepper motor drivers in 3D printers or CNC machines.

- LED Display Panels: For driving large arrays of LEDs.

- Relay Drivers: In automation systems to control multiple relays.

Specific Application Scenario: Driving a Stepper Motor in a 3D Printer

The ULN2803ADWG4 can be used in a 3D printer to drive the stepper motors that control the movement of the printer head.

Detailed Circuit Connection for the ULN2803ADWG4:

1. Microcontroller Interface:

- Connect the input pins (1IN-8IN) of the ULN2803ADWG4 to the output pins of the 3D printer's microcontroller.

2. Stepper Motor Connection:

- Attach the output pins (1OUT-8OUT) of the ULN2803ADWG4 to the coils of the stepper motor.

3. Power Supply:

- Connect the common pin (COM) of the ULN2803ADWG4 to the positive side of the motor's power supply.

4. Grounding:

- Ensure the ground of the ULN2803ADWG4 is connected to the system's ground.

Design Considerations with the ULN2803ADWG4:

1. Current Rating Per Channel: Make sure the current through each channel does not exceed 500mA.

2. Voltage Compatibility: The applied voltage should match the stepper motor's requirements and stay within the operating range of the ULN2803ADWG4.

3. Heat Dissipation: Implement proper heat dissipation techniques, as the ULN2803ADWG4 may generate significant heat under high load.

4. Signal Integrity: Ensure minimal noise and interference in the

signals from the microcontroller to the ULN2803ADWG4 for accurate motor control.

5. Protection Circuits: Additional over-voltage and reverse polarity protection can be beneficial to safeguard the ULN2803ADWG4 and the stepper motor.

6. PCB Layout Optimization: Design the PCB layout to minimize the length of connections and avoid potential signal degradation. Pay attention to the routing of high-current paths to reduce voltage drops and electromagnetic interference.

By effectively utilizing the ULN2803ADWG4 in a 3D printer setup to drive stepper motors, enhanced control and reliability of the motor movements can be achieved, thus contributing to the precision and quality of 3D printing, provided these design guidelines are carefully followed.

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6. What is the process for return or replacement of ULN2803ADWG4?

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 ULN2803ADWG4 we delivered, we will accept the replacement or return of the ULN2803ADWG4 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 ULN2803ADWG4.

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

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations