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Name: ULN2003APWR
Brand: Texas Instruments
SKU: ULN2003APWR
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 ULN2003APWR

Part No.:: ULN2003APWR

Manufacturer:: Texas Instruments

Package:: 16-TSSOP

Datasheet:: ULN2003APWR.pdf

Description:: TRAN 7NPN DARL 50V 0.5A 16TSSOP

In Stock:: 3223

Quantity:: Add To Cart

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ULN2003APWR Specifications

Package/Case:
16-TSSOP
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
ULx200xA
ProductStatus:
Active
SwitchType:
Relay, Solenoid Driver
NumberofOutputs:
7
Ratio-Input:Output:
1:1
OutputConfiguration:
Low Side
OutputType:
NPN
Interface:
Parallel
Voltage-Load:
50V (Max)
Voltage-Supply(Vcc/Vdd):
Not Required
Current-Output(Max):
500mA
RdsOn(Typ):
-
InputType:
Inverting
Features:
-
FaultProtection:
-
OperatingTemperature:
-40°C ~ 70°C (TA)
MountingType:
Surface Mount

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ULN2003APWR information

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ULN2003APWR Typical application Circuitry

ULN2003APWR

The ULN2003APWR chip functions as a Darlington transistor array, designed for driving high-current loads with low input current. It's especially effective in applications requiring the interfacing of low-level logic circuits with high-power devices.

Application Scenarios: This chip is widely used in relay driving, LED displays, stepper motor control, and other scenarios where high-current switching is required.

Parameter Features: The ULN2003APWR consists of seven NPN Darlington pairs, each capable of handling a continuous collector current of 500mA. It offers a high voltage capability of up to 50V and features input resistors for simplified interfacing with logic levels.

Circuit Design Example - Stepper Motor Control:

1. Input Connection: The inputs of the ULN2003APWR (pins 1-7) are connected to the output pins of a microcontroller, which provides the control signals for the stepper motor's rotation.

2. Output Connection: The outputs (pins 10-16) are connected to the coils of the stepper motor, enabling the ULN2003APWR to amplify the microcontroller's signals and drive the motor.

3. Common Ground: Pin 8 of the ULN2003APWR is connected to the ground of the circuit, ensuring a common reference point for the input and output voltages.

4. Power Supply: Pin 9, the common emitter, is connected to the positive supply voltage, which powers the Darlington pairs for driving the motor.

5. Protection Diodes: The ULN2003APWR includes built-in clamp diodes for protecting the circuit from voltage spikes, which are common when switching inductive loads like stepper motors.

Design Considerations:

- Heat Dissipation: Proper heat management is crucial, as the ULN2003APWR can generate significant heat when driving high-current loads.

- Input Voltage Levels: Ensuring that the input voltage levels are compatible with the microcontroller's output is vital for reliable operation.

- Motor Specifications: The stepper motor's current and voltage ratings must be within the ULN2003APWR's specifications to prevent damage to the chip and ensure efficient motor control.

In this stepper motor control example, the ULN2003APWR's capability to drive high-current loads with low-level logic signals is highlighted, showcasing its utility in interfacing microcontrollers with power devices. The detailed circuit design considerations underscore the importance of heat dissipation, input voltage compatibility, and adherence to motor specifications for the successful application of the ULN2003APWR in this context.

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6. What is the process for return or replacement of ULN2003APWR?

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 ULN2003APWR we delivered, we will accept the replacement or return of the ULN2003APWR 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 ULN2003APWR.

(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