Texas Instruments

UC3842AD  

Power Supply Controllers, Monitors

UC3842AD Description

The UC3842AD is a high-performance PWM (Pulse Width Modulation) controller IC designed for a wide range of power supply applications. Manufactured by Texas Instruments, this IC is part of the UCx84xA series and is known for its robustness and versatility. It operates within a temperature range of 0°C to 70°C (TA) and is suitable for surface mount applications, making it ideal for compact and efficient power supply designs.

The UC3842AD features a supply current of 11 mA and can operate with a supply voltage ranging from 10V to 30V. This wide voltage range ensures compatibility with various power sources, enhancing its flexibility in different applications. The IC is packaged in a tube format, which is convenient for handling and storage, and it has a moisture sensitivity level (MSL) of 1 (Unlimited), making it suitable for a variety of manufacturing environments.

Compliance with industry standards is ensured, as the UC3842AD is REACH unaffected and ROHS3 compliant, aligning with environmental and safety regulations. The HTSUS code for this product is 8542.39.0001, facilitating international trade and regulatory compliance.

UC3842AD Features

The UC3842AD offers several key features that set it apart from similar models:

1. Wide Operating Voltage Range: The ability to operate between 10V and 30V supply voltage ensures compatibility with a broad spectrum of power sources, making it highly adaptable for various power supply designs.
2. Low Supply Current: With a supply current of only 11 mA, the UC3842AD is highly efficient, minimizing power consumption and heat generation, which is crucial for maintaining system performance and longevity.
3. Surface Mount Compatibility: The surface mount mounting type allows for compact and space-efficient designs, ideal for modern electronics where space is often a limiting factor.
4. Robust Temperature Range: Operating within a temperature range of 0°C to 70°C (TA) ensures reliability and performance in a variety of environmental conditions, making it suitable for both indoor and outdoor applications.
5. Compliance and Standards: The UC3842AD is REACH unaffected and ROHS3 compliant, ensuring it meets the highest environmental and safety standards, which is essential for global market acceptance.

UC3842AD Applications

The UC3842AD is a versatile PWM controller IC, suitable for a wide range of applications:

1. Power Supplies: Ideal for designing efficient and compact power supplies, including switch-mode power supplies (SMPS) and DC-DC converters.
2. Motor Control: Can be used in motor control applications where precise PWM control is required for speed and torque regulation.
3. Lighting Control: Suitable for LED lighting systems where PWM control is used to regulate brightness and color mixing.
4. Battery Chargers: Effective in battery charging circuits where PWM control is necessary for managing charge rates and ensuring safe charging conditions.
5. Industrial Automation: Useful in industrial control systems where precise and reliable PWM control is essential for process automation and control.

Conclusion of UC3842AD

The UC3842AD from Texas Instruments is a highly versatile and efficient PWM controller IC, offering a wide range of features and benefits that make it an excellent choice for various power supply and control applications. Its wide operating voltage range, low supply current, and surface mount compatibility ensure it can be integrated into a variety of designs with ease. The robust temperature range and compliance with industry standards further enhance its reliability and market acceptance.

Whether used in power supplies, motor control systems, lighting applications, or industrial automation, the UC3842AD provides a reliable and efficient solution for PWM control needs. Its combination of technical specifications, performance benefits, and compliance with environmental standards make it a standout choice in the electronics industry.

UC3842AD Documents

Download datasheets and manufacturer documentation for UC3842AD

Images :

Mechanical Outline Drawing       Function Diagram      

PCN :

Product Change Notification 2024-08-28 (PDF)       Product Change Notification (PDF)       Product Change Notification 2024-10-16 (PDF)      

Models :

UC3842AD Symbol & Footprint by SnapMagic      

Product Catalogs :

Power Management Guide 2018 (Rev. R)      

SPICE Models :

UCC28C42 PSpice Transient Model       UCCx8C44 Unencrypted PSpice Transient Model       UCCx8C42 Unencrypted PSpice Transient Model