onsemi

UC2844NG  

DC DC Switching Controllers

UC2844NG Description

The UC2844NG is a specialized transistor driver IC designed for power management applications, particularly in boost and flyback converter topologies. Manufactured by onsemi, this component is part of the Power Management (PMIC) category and is housed in a through-hole package, specifically an 8-DIP tube. Despite its obsolete status, the UC2844NG remains a robust solution for applications requiring high-frequency switching up to 500kHz and a wide supply voltage range of 10V to 30V. It is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulatory standards.

UC2844NG Features

The UC2844NG offers several key features that make it a versatile and reliable choice for power management systems:

• Output Type: Transistor Driver, capable of driving external transistors efficiently.
• Output Configuration: Positive and isolation capable, providing flexibility in circuit design.
• Frequency - Switching: Supports up to 500kHz, enabling high-frequency operation suitable for compact and high-efficiency power supplies.
• Voltage - Supply (Vcc/Vdd): Operates within a wide range of 10V to 30V, accommodating various power supply requirements.
• Moisture Sensitivity Level (MSL): Rated at MSL 1 (Unlimited), ensuring durability in diverse environmental conditions.
• Control Features: Includes frequency control, allowing precise regulation of the switching frequency.
• Duty Cycle (Max): Capable of up to 48% duty cycle, providing efficient power conversion.
• Output Phases: Single phase, simplifying the design and reducing complexity.
• Package: Supplied in a tube package, facilitating easy handling and integration in through-hole mounting applications.

UC2844NG Applications

The UC2844NG is ideal for a variety of applications where efficient power conversion and control are critical:

• Boost Converters: Enhances the performance of boost converters by providing efficient transistor driving and precise frequency control.
• Flyback Converters: Ideal for flyback converter designs, ensuring reliable operation and high efficiency.
• Power Supplies: Suitable for various power supply applications, including those requiring high-frequency switching and wide input voltage ranges.
• Industrial Equipment: Can be used in industrial applications where robustness and compliance with international standards are essential.

Conclusion of UC2844NG

The UC2844NG, despite being obsolete, remains a valuable component in the power management domain. Its unique features, such as high-frequency switching capability, wide supply voltage range, and robust packaging, make it a reliable choice for applications requiring efficient power conversion. While newer alternatives may offer enhanced performance, the UC2844NG continues to serve well in legacy systems and specific applications where its attributes are particularly advantageous. For engineers and designers seeking a proven solution in boost and flyback converter designs, the UC2844NG is a worthy consideration.

UC2844NG Documents

Download datasheets and manufacturer documentation for UC2844NG

Datasheets :

UC3844-45, UC2844-45      

PCN Obsolescence/ EOL :

Multiple Devices 15/May/2006      

HTML Datasheet :

UC3844-45, UC2844-45      

Environmental Information :

onsemi RoHS       onsemi REACH