- Datasheet Download Datasheet
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- Part Number UC2842ADW
- Manufacturer Texas Instruments
- Pin Count 16
- Part Category Integrated Circuit
- Package Category Small Outline Packages
- Footprint Name Small Outline Packages - DW0016A HEIGHT2.65
- Released Date Dec 12, 2021
- Last Modified Date Mar 7, 2023 4:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
UC2842ADW Details
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Manufacturer Part Number:
UC2842ADW
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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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ECCN Code:
EAR99
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HTS Code:
8542.39.00.90
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Manufacturer:
Texas Instruments
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YTEOL:
15
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Analog IC - Other Type:
SWITCHING CONTROLLER
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Control Mode:
CURRENT-MODE
UC2842ADW Frequently Asked Questions (FAQs)
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The UC2842ADW is a high-frequency switching converter, so a good PCB layout is crucial. TI recommends a 4-layer PCB with a solid ground plane, and to keep the switching node (pins 3 and 4) as short as possible. Also, decouple the input and output capacitors close to the IC, and use a common ground point for the input and output returns.
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The inductor value depends on the output voltage, current, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. For the inductor type, choose a low-loss, high-frequency inductor with a high saturation current rating, such as a ferrite or iron powder core inductor.
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The maximum duty cycle for the UC2842ADW is 90%. Exceeding this limit can cause the output voltage to rise above the specified maximum value, potentially damaging the IC or other components. To ensure a stable output voltage, keep the duty cycle below 90% and adjust the output voltage accordingly.
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The UC2842ADW requires a type-II compensation network to stabilize the voltage feedback loop. TI recommends using a series R-C network (R1, C1) and a parallel R-C network (R2, C2) to compensate the feedback loop. The values of these components depend on the specific application and can be calculated using the datasheet's compensation design equations.
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The UC2842ADW has a maximum junction temperature of 150°C. To ensure reliable operation, keep the IC's thermal pad connected to a solid ground plane, and use a heat sink or thermal interface material if necessary. Also, follow the recommended PCB layout and thermal design guidelines to minimize thermal resistance and ensure efficient heat dissipation.
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UC2842ADW Overview
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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.