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Name: ULN2803ANG4
Brand: Texas Instruments
SKU: ULN2803ANG4
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 ULN2803ANG4

Part No.:: ULN2803ANG4

Manufacturer:: Texas Instruments

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

Datasheet:: ULN2803ANG4.pdf

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

In Stock:: 2407

Quantity:: Add To Cart

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ULN2803ANG4 Specifications

Packaging:
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

ULN2803ANG4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ULN2803ANG4 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 ULN2803ANG4 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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ULN2803ANG4 information

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ULN2803ANG4 Typical application Circuitry

ULN2803ANG4

The ULN2803ANG4 is an integrated circuit that functions as a Darlington transistor array. It's designed primarily for driving a wide array of loads like relays, solenoids, and stepper motors, especially in applications where higher current capacity is needed than what the direct output from a microcontroller or logic circuit can provide.

Key Features of the ULN2803ANG4:

1. Multiple Darlington Pairs: The ULN2803ANG4 contains eight Darlington pairs, allowing it to drive multiple outputs.

2. High Voltage and Current Handling: It can handle up to 50V across its outputs and up to 500mA per channel.

3. Built-In Clamp Diodes: These diodes protect the circuit from voltage spikes, particularly when driving inductive loads.

4. Compatibility with Logic Levels: The ULN2803ANG4 is compatible with standard TTL and CMOS logic levels.

Application Scenarios for the ULN2803ANG4:

- Controlling LED Displays: For driving multiple LEDs in signage or display panels.

- Robotic Applications: In driving motors and actuators in robotic systems.

- Home Automation: Controlling various actuators like relays and solenoids.

Specific Application Scenario: Controlling Relays in a Home Automation System

In a home automation system, the ULN2803ANG4 can be used to control multiple relays for turning devices on and off.

Detailed Circuit Connection for the ULN2803ANG4:

1. Inputs from a Microcontroller:

- Connect the input pins (1IN-8IN) of the ULN2803ANG4 to the output pins of a microcontroller.

2. Outputs to Relays:

- Attach the output pins (1OUT-8OUT) of the ULN2803ANG4 to the relay coils.

3. Common Ground Connection:

- The ground pin (COM) of the ULN2803ANG4 should be connected to the system's ground.

4. Power Supply for Relays:

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

Design Considerations with the ULN2803ANG4:

1. Current Capacity of Each Channel: Ensure that the current through each channel does not exceed the 500mA limit of the ULN2803ANG4.

2. Voltage Requirements: The voltage applied to the ULN2803ANG4 should be within its specified range.

3. Heat Dissipation: Depending on the number of channels used and the current through each, the ULN2803

ANG4 may generate heat and require adequate heat dissipation methods.

4. Protection Mechanisms: Additional protective measures such as over-voltage and reverse polarity protection may be necessary to safeguard the ULN2803ANG4 and the overall circuit.

5. Signal Integrity: Maintain the integrity of signals from the microcontroller to the ULN2803ANG4 to ensure accurate relay control.

6. PCB Layout: Design the PCB to minimize the path length between the ULN2803ANG4, the microcontroller, and the relay coils for efficient signal transfer and reduced potential signal degradation.

By effectively utilizing the ULN2803ANG4 in a home automation system for controlling relays, it's possible to efficiently manage various devices, enhancing the system's capability and reliability, provided these design guidelines are carefully implemented.

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6. What is the process for return or replacement of ULN2803ANG4?

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 ULN2803ANG4 we delivered, we will accept the replacement or return of the ULN2803ANG4 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 ULN2803ANG4.

(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