What is the Additional Feature ?

Name: ULN2803AN
Brand: Texas Instruments
SKU: ULN2803AN
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 ULN2803AN

Part No.:: ULN2803AN

Manufacturer:: Texas Instruments

Package:: 18-DIP (0.300, 7.62mm)

Datasheet:: ULN2803AN.pdf

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

In Stock:: 3824

Quantity:: Add To Cart

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ULN2803AN Specifications

Packaging:
Tube,Tube
Series:
-
ProductStatus:
Obsolete
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:
Through Hole

ULN2803AN this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ULN2803AN 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 ULN2803AN 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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ULN2803AN information

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ULN2803AN Typical application Circuitry

ULN2803AN

The ULN2803AN is a Darlington transistor array chip, designed for driving high-voltage and high-current loads. It's particularly effective for interfacing with microcontroller outputs that cannot directly drive larger loads.

Key Features of the ULN2803AN:

1. Multiple Darlington Pairs: The ULN2803AN consists of eight Darlington pairs, enabling it to drive multiple outputs.

2. High Current Handling: Each channel can handle up to 500mA.

3. High Voltage Tolerance: The chip can tolerate up to 50V across its outputs.

4. Built-In Flyback Diodes: These diodes provide protection against inductive voltage spikes.

Application Scenarios for the ULN2803AN:

- Driving Relays or Solenoids: In automation systems for controlling power to mechanical devices.

- LED Displays: For controlling large arrays of LEDs in signage or display boards.

- Stepper Motors: In precision control devices like 3D printers or CNC machines.

Specific Application Scenario: Controlling LED Arrays in a Display

In a large LED display, the ULN2803AN can be used to control multiple LED arrays.

Detailed Circuit Connection for the ULN2803AN:

1. Input from Controller:

- Connect the input pins (1IN-8IN) of the ULN2803AN to the output pins of a microcontroller or LED controller.

2. Output to LED Arrays:

- Attach the output pins (1OUT-8OUT) of the ULN2803AN to the LED arrays.

3. Power Supply Configuration:

- The common pin (COM) of the ULN2803AN should be connected to the positive side of the power supply, suitable for driving the LEDs.

4. Grounding:

- Ensure the ground of the ULN2803AN is connected to the system's ground.

Design Considerations with the ULN2803AN:

1. Current Limitations: Verify that the current demand of each LED array does not exceed the 500mA per channel limit.

2. Voltage Matching: Ensure the voltage levels are suitable for both the ULN2803AN and the LED arrays.

3. Thermal Management: Depending on the usage, the ULN2803AN may need additional heat dissipation measures.

4. Signal Integrity: Maintain stable and noise-free signals from the controller to the ULN2803AN for precise LED control.

5. Protection Circuits: Although the ULN2803AN includes flyback diodes, consider additional protective measures like overvoltage and reverse polarity protection, especially in larger or more complex LED setups.

6. PCB Layout: Carefully design the PCB to minimize the path length between the ULN2803AN, the controller, and the LED arrays, reducing potential signal degradation and electromagnetic interference.

Utilizing the ULN2803AN in a large LED display system provides an efficient solution for controlling multiple LED arrays, enhancing the display's capabilities and reliability, as long as these design guidelines are meticulously adhered to.

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6. What is the process for return or replacement of ULN2803AN?

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 ULN2803AN we delivered, we will accept the replacement or return of the ULN2803AN 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 ULN2803AN.

(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