onsemi

UC3842BDR2  

DC DC Switching Controllers

UC3842BDR2 Description

The UC3842BDR2 is a transistor driver IC designed for power management applications, specifically tailored for boost and flyback topologies. Manufactured by onsemi, this IC is part of the Power Management (PMIC) category and is housed in a 14-SOIC package. It features a supply voltage range of 10V to 30V and can operate within a temperature range of 0°C to 70°C. The UC3842BDR2 supports switching frequencies up to 500kHz, making it suitable for high-frequency applications. This IC is REACH unaffected and has a moisture sensitivity level (MSL) of 1, indicating unlimited storage conditions. It is important to note that the UC3842BDR2 is an obsolete product, which may impact its availability and support.

UC3842BDR2 Features

The UC3842BDR2 offers several key features that make it a robust choice for power management applications:

• Output Type: Transistor Driver
• Output Configuration: Positive, Isolation Capable
• Frequency Control: Up to 500kHz
• Duty Cycle (Max): 96%
• Number of Outputs: 1
• Output Phases: 1
• Control Features: Frequency Control
• Topology: Boost, Flyback
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)

The UC3842BDR2's ability to operate with a wide supply voltage range (10V to 30V) and its high maximum duty cycle (96%) provide flexibility and efficiency in power conversion designs. Its positive output configuration and isolation capability make it suitable for applications requiring electrical isolation between the input and output stages.

UC3842BDR2 Applications

The UC3842BDR2 is ideal for a variety of power management applications, including:

• Boost Converters: Enhancing voltage levels in power supplies.
• Flyback Converters: Providing isolated power conversion for various electronic devices.
• Switching Power Supplies: Efficiently managing power in compact and high-frequency designs.

Its surface mount technology (SMT) and 14-SOIC package make it suitable for space-constrained applications, while its ability to operate within a wide temperature range (0°C to 70°C) ensures reliability in various environmental conditions. The UC3842BDR2's high switching frequency capability (up to 500kHz) is particularly beneficial for applications requiring high efficiency and reduced component size.

Conclusion of UC3842BDR2

The UC3842BDR2 is a versatile transistor driver IC designed for power management applications, offering a wide supply voltage range, high switching frequency, and robust performance features. Its compatibility with boost and flyback topologies makes it suitable for a variety of power conversion tasks. Despite being an obsolete product, the UC3842BDR2 remains a reliable choice for applications requiring efficient power management and high-frequency operation. For designers seeking a compact, high-efficiency solution, the UC3842BDR2 is an excellent option, provided that the obsolete status is considered in terms of availability and long-term support.

UC3842BDR2 Documents

Download datasheets and manufacturer documentation for UC3842BDR2

Datasheets :

UC3842B-43B, UC2842B-43B      

PCN Obsolescence/ EOL :

Multiple Devices 03/Jan/2008      

HTML Datasheet :

UC3842B-43B, UC2842B-43B      

Environmental Information :

onsemi RoHS       onsemi REACH