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- Part Number UC3853DTR
- Manufacturer Texas Instruments
- Pin Count 8
- Part Category Integrated Circuit
- Package Category Small Outline Packages
- Footprint Name Small Outline Packages - D
- Released Date Dec 5, 2021
- Last Modified Date Mar 7, 2023 4:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
UC3853DTR Details
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Manufacturer Part Number:
UC3853DTR
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Brand Name:
Texas Instruments
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Pbfree Code:
Yes
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Rohs Code:
Yes
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Part Life Cycle Code:
Active
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Part Package Code:
SOIC
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Pin Count:
8
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Country Of Origin:
Mexico
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ECCN Code:
EAR99
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HTS Code:
8542.39.00.90
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Manufacturer:
Texas Instruments
UC3853DTR Frequently Asked Questions (FAQs)
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Texas Instruments recommends a compact layout with the controller, power FETs, and output capacitors placed close together. The input and output pins should be routed away from each other, and the PCB should have a solid ground plane to reduce noise and EMI.
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The output inductor should be chosen based on the desired output voltage, current, and switching frequency. A good starting point is to use an inductor with a value between 1-10 μH, and a current rating that exceeds the maximum output current. The inductor's physical size, core material, and DC resistance should also be considered.
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The UC3853DTR has a maximum junction temperature rating of 150°C. However, it's recommended to keep the junction temperature below 125°C to ensure reliable operation and extend the device's lifespan.
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Yes, the UC3853DTR can be used in designs with high-input voltages, but it requires additional components to regulate the input voltage and ensure the device's internal voltage regulators can handle the voltage. A voltage divider or a separate voltage regulator may be needed to step down the input voltage to a level that the UC3853DTR can handle.
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To troubleshoot issues with the UC3853DTR, start by checking the power supply voltage, output voltage, and current. Verify that the input and output capacitors are properly sized and placed. Use an oscilloscope to check for oscillations or ringing on the output voltage and current waveforms. Check the PCB layout for any signs of noise or EMI, and ensure that the device is properly heatsinked.
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UC3853DTR Overview
Use the download button to access the UC3853DTR schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like UC385,
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.