Texas Instruments

UC3843N  

Power Supply Controllers, Monitors

UC3843N Description

The UC3843N is a high-performance PWM (Pulse Width Modulation) controller designed for a wide range of power management applications. Manufactured by Texas Instruments, this IC is part of the UCx84x series and is housed in a through-hole package, making it suitable for robust and reliable power conversion systems. The UC3843N operates within a temperature range of 0°C to 70°CTA () and is designed to work with a supply voltage between 12V and 28V. It features a supply current of 11 mA, ensuring efficient power usage.

This PWM controller is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. The UC3843N is available in a tube package and is classified under HTSUS code 8542.39.0001. With its active product status, the UC3843N is a reliable choice for engineers and designers looking for a robust PWM controller.

UC3843N Features

The UC3843N offers several unique features that set it apart from similar models in the market:

• Wide Operating Voltage Range: The UC3843N supports a supply voltage range of 12V to 28V, making it versatile for various power supply designs.
• Low Supply Current: With a supply current of only 11 mA, the UC3843N ensures minimal power consumption, enhancing overall system efficiency.
• Through-Hole Mounting: The through-hole mounting type provides a secure and durable installation, ideal for applications requiring high reliability.
• Compliance and Safety: The UC3843N is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Active Product Status: The active status of the UC3843N guarantees ongoing support and availability for current and future projects.

UC3843N Applications

The UC3843N is ideal for a variety of applications, particularly those requiring precise control and high efficiency:

• Power Supplies: The UC3843N is well-suited for designing efficient power supplies, including switch-mode power supplies (SMPS) and DC-DC converters.
• Motor Control: Its PWM capabilities make it suitable for controlling motor speeds and ensuring precise motor operation.
• Battery Chargers: The UC3843N can be used in battery charging circuits to manage the charging process efficiently and safely.
• LED Drivers: The PWM controller can regulate LED brightness, providing consistent illumination in lighting applications.

Conclusion of UC3843N

The UC3843N PWM controller from Texas Instruments is a versatile and reliable solution for power management applications. Its wide operating voltage range, low supply current, and through-hole mounting type make it an excellent choice for engineers seeking a robust and efficient PWM controller. With its compliance with environmental and safety standards, the UC3843N ensures that your designs meet regulatory requirements. Whether used in power supplies, motor control, battery chargers, or LED drivers, the UC3843N offers precise control and high efficiency, making it a standout choice in the power management industry.

UC3843N Documents

Download datasheets and manufacturer documentation for UC3843N

PCN Assembly/Origin :

UC284/UC384 16/Mar/2022      

Datasheets :

UC1842-45, UC2842-45, UC3842-45      

HTML Datasheet :

UC1842-45, UC2842-45, UC3842-45      

PCN Design/Specification :

US18/28/38 DataSheet Update 4/Jan/2017