onsemi

UC3843ADR2  

DC DC Switching Controllers

UC3843ADR2 Description

The UC3843ADR2 is a high-performance, monolithic integrated circuit designed for driving power MOSFETs in a variety of DC-DC switching applications. Manufactured by onsemi, this device is part of the DC-DC Switching Controllers category and offers a unique combination of features and performance benefits. Although the product is currently marked as obsolete, it still holds value in certain applications where its specific capabilities are required.

UC3843ADR2 Features

• Output Type: Transistor Driver, designed to drive power MOSFETs efficiently.
• Output Configuration: Positive and Isolation Capable, ensuring safe and reliable operation.
• Frequency - Switching: Up to 500kHz, allowing for high-speed switching applications.
• REACH Status: REACH Unaffected, indicating compliance with European chemical regulations.
• Voltage - Supply (Vcc/Vdd): 7.6V to 30V, providing a wide operating voltage range.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), ensuring robustness against moisture.
• Operating Temperature: 0°C to 70°C (TA), suitable for a variety of environmental conditions.
• Synchronous Rectifier: No, simplifying the design without the need for synchronous rectification.
• Topology: Boost and Flyback, offering flexibility in power conversion topologies.
• Mounting Type: Surface Mount, facilitating integration into compact designs.
• Clock Sync: No, simplifying the control scheme.
• Number of Outputs: 1, focusing on single-output applications.
• Control Features: Frequency Control, enabling precise regulation of switching frequency.
• Duty Cycle (Max): 96%, allowing for high efficiency in power conversion.
• Output Phases: 1, suitable for single-phase power conversion.
• Package: Tape & Reel (TR)

UC3843ADR2 Applications

The UC3843ADR2 is ideal for applications requiring high efficiency and reliability in power conversion, such as:

• Telecommunications Equipment: Providing stable power supply for communication devices.
• Industrial Control Systems: Ensuring reliable operation in harsh industrial environments.
• Automotive Electronics: Powering various electronic components in vehicles.
• Power Supplies: Offering a compact and efficient solution for various power supply needs.

Conclusion of UC3843ADR2

While the UC3843ADR2 is an obsolete product, it still offers a robust solution for specific applications where its unique features are required. Its wide operating voltage range, high switching frequency, and ability to handle a variety of topologies make it a versatile choice for designers looking for a reliable and efficient power conversion solution. Although newer models may offer additional features and improved performance, the UC3843ADR2 remains a viable option for applications where its specific capabilities are a perfect fit.

UC3843ADR2 Documents

Download datasheets and manufacturer documentation for UC3843ADR2

Datasheets :

UC2842A(43A), UC3842A(43A)      

PCN Obsolescence/ EOL :

Multiple Devices 15/May/2006      

HTML Datasheet :

UC2842A(43A), UC3842A(43A)      

Environmental Information :

onsemi RoHS       onsemi REACH