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Name: DCP020503U
Brand: Texas Instruments
SKU: DCP020503U
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 DCP020503U

Part No.:: DCP020503U

Manufacturer:: Texas Instruments

Package:: 28-SOIC (0.295, 7.50mm Width), 12 Leads

Datasheet:: DCP020503U.pdf

Description:: DC DC CONVERTER 3.3V 2W

In Stock:: 850

Quantity:: Add To Cart

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DCP020503U Typical application Circuitry

DCP020503U

The DCP020503U is a miniature, isolated DC-DC converter manufactured by Texas Instruments, designed primarily to offer both galvanic isolation and power conversion in a single, compact package. This device is particularly adept at converting a standard 5V input to a dual output of ±3V, making it an ideal choice for applications requiring isolated signal paths such as data acquisition systems, industrial control interfaces, and isolated sensor modules.

Key Features and Specifications:

- Input Voltage: Optimized for a 5V input, making it compatible with standard logic levels and power supplies commonly used in digital systems.

- Dual Output Voltage: Provides ±3V isolated outputs, suitable for powering sensors, analog circuits, or any component requiring a bipolar supply.

- Isolation Voltage: Rated for 1kV isolation, ensuring that input and output are electrically separated to protect sensitive components and users from electrical shocks.

- High Efficiency: Exhibits efficient power conversion, which is crucial for minimizing heat generation in space-constrained applications.

- Compact Package: Its small footprint allows for easy integration into PCB layouts where space is at a premium, without compromising performance or isolation.

Application Scenario: A valuable application of the DCP020503U is in an isolated RS-485 communication interface, which requires isolated power supplies to maintain signal integrity and protect against ground loops in industrial environments.

Circuit Integration Details:

Incorporating the DCP020503U into an isolated RS-485 communication module involves careful attention to its pinout and electrical connections:

1. Power Input Connection (VIN, Pin 5): This pin should be connected to a 5V supply derived from the system's main power source. The DCP020503U converts this input to ±3V outputs, crucial for powering the isolated side of the RS-485 interface.

2. Isolated Positive Output (VOUT+, Pin 3): This pin provides the +3V output, which can be used to power the RS-485 transceiver's isolated side or other isolated components in the communication module.

3. Isolated Negative Output (VOUT-, Pin 2): This pin delivers the -3V output, completing the bipolar supply necessary for certain isolated components requiring a dual supply voltage.

4. Ground Connections (GND, Pins 1 and 4; Pin 6 is NC - No Connection): Pins 1 and 4 should be connected to the system ground. It's essential to ensure that the ground plane on the isolated side is kept separate from the main system ground to maintain isolation integrity.

5. Thermal and Electromagnetic Considerations: Despite the DCP020503U's efficiency, the design should incorporate measures to manage heat dissipation, such as keeping sensitive traces away from heat sources. Additionally, incorporating filtering on the input and output lines can mitigate electromagnetic interference (EMI), which is critical in industrial settings.

Design Considerations:

- Load Requirements: Assessing the power needs of the isolated RS-485 transceiver and any other components powered by the DCP020503U is vital to avoid overloading the converter.

- Isolation Barrier Integrity: The layout must ensure that the high-voltage isolation barrier provided by the DCP020503U is not compromised, preserving the safety and integrity of the communication module.

- EMI Mitigation: Implementing strategies to minimize EMI, such as using proper decoupling and filtering techniques, is crucial in maintaining communication reliability, especially in noisy industrial environments.

- Space and Layout Efficiency: Given the compact size of the DCP020503U, optimizing PCB real estate is feasible; however, careful layout planning is essential to accommodate isolation distances and thermal management.

- Environmental Considerations: The DCP020503U must be deployed in a manner that ensures its performance is not adversely affected by the operating environment, which includes considerations for temperature, humidity, and potential contaminants.

Incorporating the DCP020503U into an isolated RS-485 communication interface highlights its capabilities in providing reliable, efficient isolated power conversion. This scenario underscores the converter's role in enhancing communication reliability and system safety in demanding industrial applications.

DCP020503U information

DCP020503U Specifications

Package/Case:
28-SOIC (0.295, 7.50mm Width), 12 Leads
Packaging:
Tube
Series:
DCP02 (2W)
ProductStatus:
Active
Type:
Isolated Module
NumberofOutputs:
1
Voltage-Input(Min):
4.5V
Voltage-Input(Max):
5.5V
Voltage-Output1:
3.3V
Voltage-Output2:
-
Voltage-Output3:
-
Voltage-Output4:
-
Current-Output(Max):
606mA
Power(Watts):
2 W
Voltage-Isolation:
1 kV
Applications:
ITE (Commercial)
Features:
OTP
OperatingTemperature:
-40°C ~ 85°C
Efficiency:
74%
MountingType:
Surface Mount
Size/Dimension:
0.71 L x 0.30 W x 0.10 H (18.1mm x 7.6mm x 2.7mm)
ControlFeatures:
ApprovalAgency:

DCP020503U FAQ

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3. Are the DCP020503U price and inventory displayed accurate?

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6. What is the process for return or replacement of DCP020503U?

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 DCP020503U we delivered, we will accept the replacement or return of the DCP020503U 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 DCP020503U.

(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