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Name: OPA561PWP
Brand: Texas Instruments
SKU: OPA561PWP
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 OPA561PWP

Part No.:: OPA561PWP

Manufacturer:: Texas Instruments

Package:: 20-PowerTSSOP (0.173, 4.40mm Width)

Datasheet:: OPA561PWP.pdf

Description:: IC OPAMP GP 1 CIRCUIT 20HTSSOP

In Stock:: 2795

Quantity:: Add To Cart

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OPA561PWP Specifications

Package/Case:
20-PowerTSSOP (0.173, 4.40mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
AmplifierType:
General Purpose
NumberofCircuits:
1
OutputType:
-
SlewRate:
50V/µs
GainBandwidthProduct:
17 MHz
-3dbBandwidth:
-
Current-InputBias:
10 pA
Voltage-InputOffset:
1 mV
Current-Supply:
50mA
Current-Output/Channel:
1.2 A
Voltage-SupplySpan(Min):
7 V
Voltage-SupplySpan(Max):
15 V
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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OPA561PWP information

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OPA561PWP Typical application Circuitry

OPA561PWP

An operational amplifier (op-amp) with high voltage and high current, the OPA561PWP is made to precisely drive a variety of loads. It is capable of delivering up to 2.5A of continuous output current and operates with supply voltages up to ±35V. This op-amp is well-suited for applications requiring substantial power delivery alongside accurate control, such as motor drives, audio amplifiers, and power supply regulation.

Key Features and Specifications

- High Output Current: Capable of providing up to 2.5A of continuous output current, ideal for powering heavy loads.

- Broad Supply Voltage Range: Capable of operating at supply voltages as high as ±35V, providing adaptability to a range of electrical situations.

- Protection Features: Includes both thermal shutdown protection and an adjustable current limit, enhancing reliability and safety.

- Power Bandwidth: Offers a broad power bandwidth for driving dynamic loads efficiently.

- Sturdy Design: Fit for tough applications needing a lot of power and accuracy.

Application Situation: DC Motor Drive with Brushed Finish

The OPA561PWP is a useful component for robotics, automation systems, and other motor-driven applications. It can be used to control the speed and direction of a motor in a brushed DC motor driving circuit.

Circuit Connection Information

- Motor Connection: Attach the brushed DC motor directly to Pin 11 (the output) of the OPA561PWP. This setup takes advantage of the op-amp's high-current capability to drive the motor.

- Power supply connections: Connect the V+ pin (Pin 20) to a positive supply voltage of up to +35V, and connect the V-pin (Pin 10), to a negative supply voltage of up to -35V. The OPA561PWP's capacity to power the motor effectively is supported by its wide voltage range.

- Control Signal Input: To control the speed of the motor, the control voltage signal is applied to Pin 3, the non-inverting input. The signal's magnitude and polarity influence the motor's speed and direction, utilizing the OPA561PWP's precision in control applications.

- Current Limiting Configuration: Attach a resistor (Rset) between the current limit pin (Pin 5) and ground to create an adjustable current limit. This adjustable current limiting feature provides crucial protection against overcurrent scenarios.

- Feedback for Performance Optimization: To achieve closed-loop control, create a feedback loop by connecting the output (Pin 11) to the inverting input (Pin 2) via a resistor network. Feedback enhances motor performance by improving control accuracy and response.

Design Considerations

When designing a brushed DC motor drive circuit with the OPA561PWP, several key factors must be carefully considered:

- Effective Thermal Management: Due to potential heat generation at high output currents, incorporating appropriate cooling solutions such as heatsinks is vital.

- Stable Power Supply: A stable and reliable power supply is crucial to ensure consistent motor operation, especially under varying load conditions.

- Protection Mechanisms: In addition to the built-in current limit, external protection features like diodes for back EMF protection can enhance circuit reliability and protect against voltage spikes.

- Load Specifications: Understanding the motor's electrical characteristics is important for optimizing the drive circuit and ensuring that the OPA561PWP operates within its safe operating area.

Utilizing the OPA561PWP in a brushed DC motor drive circuit leverages its high-current output, adjustable current limiting, and wide supply voltage range, making it well-suited for applications requiring robust and precise motor control. Ensuring the successful implementation and reliability of the motor drive system requires careful consideration of thermal management, power supply stability, additional protective measures, and a full understanding of the motor's specifications.

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6. What is the process for return or replacement of OPA561PWP?

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 OPA561PWP we delivered, we will accept the replacement or return of the OPA561PWP 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 OPA561PWP.

(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