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Name: ULN2803CDWR
Brand: Texas Instruments
SKU: ULN2803CDWR
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 ULN2803CDWR

Part No.:: ULN2803CDWR

Manufacturer:: Texas Instruments

Package:: 20-SOIC (0.295, 7.50mm Width)

Datasheet:: ULN2803CDWR.pdf

Description:: 50-V, EIGHT-CHANNEL DARLINGTON A

In Stock:: 3805

Quantity:: Add To Cart

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ULN2803CDWR Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
TransistorType:
8 NPN Darlington
Current-Collector(Ic)(Max):
500mA
Voltage-CollectorEmitterBreakdown(Max):
50V
VceSaturation(Max)@IbIc:
1.6V @ 500µA, 350mA
Current-CollectorCutoff(Max):
50µA
DCCurrentGain(hFE)(Min)@IcVce:
-
Power-Max:
-
Frequency-Transition:
-
OperatingTemperature:
-65°C ~ 150°C (TJ)
MountingType:
Surface Mount

ULN2803CDWR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ULN2803CDWR 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 ULN2803CDWR 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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ULN2803CDWR information

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ULN2803CDWR Typical application Circuitry

ULN2803CDWR

The ULN2803CDWR is a high-voltage, high-current Darlington transistor array. It is designed and manufactured by Texas Instruments. This IC consists of eight NPN Darlington pairs, which are capable of driving a wide array of loads.

Key Features of the ULN2803CDWR:

1. High Voltage and Current Capability: The ULN2803CDWR can handle up to 50V and deliver up to 500mA for each Darlington pair, offering robust performance for various applications.

2. Integrated Clamp Diodes: The ULN2803CDWR features integrated suppression diodes for inductive loads. This helps protect the device against inductive kickback, a common issue when driving inductive loads such as motors or relays.

3. Wide Range of Input Voltage: This device can operate with input logic levels from 5V TTL to CMOS and PMOS, providing flexibility in interfacing with different logic levels.

Application Scenarios:

The ULN2803CDWR is particularly useful in scenarios where there is a need to drive high-current and high-voltage loads, such as motors, relays, solenoids, and LED display lighting. The chip is often used in industries like automotive systems, telecommunication, consumer electronics, and industrial applications.

Example of Circuit Connection - Driving a Relay:

1. Input Pins (Pins 1 to 8): These pins are the inputs for the Darlington pairs. An input signal from your microcontroller or other logic device should be connected to these pins to control the operation of the relay.

2. Output Pins (Pins 10 to 17): These pins are the outputs for each Darlington pair and should be connected to the coil of the relay you wish to drive.

3. Common Free-Wheeling Diodes (Pin 9 - COM): This pin is internally connected to the cathodes of the suppression diodes and should be connected to the positive voltage that is driving your relays.

4. Ground (Pin 18 - GND): This pin should be connected to the system ground.

Design Considerations with ULN2803CDWR:

1. Driving Inductive Loads: When driving inductive loads like relays, it is important to use the integrated clamp diodes to protect the IC from potential voltage spikes.

2. Thermal Management: The package may get hot when driving large currents, so consider heat dissipation in your design.

3. Logic Level Compatibility: Ensure the input logic level matches with the controlling device for correct operation.

To summarize, the ULN2803CDWR is a powerful and versatile IC that can effectively handle the demands of high-voltage, high-current applications, thanks to its robust capabilities and integrated protection mechanisms.

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6. What is the process for return or replacement of ULN2803CDWR?

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 ULN2803CDWR we delivered, we will accept the replacement or return of the ULN2803CDWR 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 ULN2803CDWR.

(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