Texas Instruments

UC3845D  

Power Supply Controllers, Monitors

UC3845D Description

The UC3845D is a high-performance PWM (Pulse Width Modulation) controller designed for a wide range of power supply applications. Manufactured by Texas Instruments, this IC is part of the Power Supply Controllers and Monitors category, offering robust performance and reliability. The UC3845D is housed in a 14-pin SOIC package and is available in a tube packaging format, making it suitable for surface mount applications.

This PWM controller operates within a supply voltage range of 12V to 28V and features a supply current of 11 mA, ensuring efficient power consumption. The UC3845D is designed to function effectively within an operating temperature range of 0°C to 70°C (TA), making it suitable for various environmental conditions. Additionally, it is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards.

UC3845D Features

The UC3845D offers several unique features that set it apart from similar models:

• Wide Operating Voltage Range: The UC3845D operates within a broad supply voltage range of 12V to 28V, providing flexibility for various power supply designs.
• Low Supply Current: With a supply current of only 11 mA, the UC3845D ensures minimal power consumption, making it ideal for energy-efficient applications.
• Surface Mount Compatibility: The surface mount mounting type allows for easy integration into compact and high-density PCB designs.
• Environmental Compliance: The UC3845D is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety regulations.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the UC3845D is highly resistant to moisture, enhancing its reliability in humid environments.

UC3845D Applications

The UC3845D is a versatile PWM controller suitable for a variety of applications:

• Power Supplies: Ideal for use in AC-DC and DC-DC power supplies, providing efficient power conversion and regulation.
• Switching Regulators: Enhances the performance of switching regulators by offering precise control and modulation.
• Battery Chargers: Ensures accurate and reliable charging of batteries by controlling the charging current and voltage.
• Motor Drives: Provides efficient control for motor drives, ensuring smooth operation and energy efficiency.

Conclusion of UC3845D

The UC3845D from Texas Instruments is a highly reliable and efficient PWM controller designed for a wide range of power supply applications. Its wide operating voltage range, low supply current, and surface mount compatibility make it an excellent choice for compact and energy-efficient designs. The UC3845D's environmental compliance and moisture resistance further enhance its reliability and suitability for various operating conditions. Whether used in power supplies, switching regulators, battery chargers, or motor drives, the UC3845D offers superior performance and versatility, making it a preferred choice for engineers and designers in the electronics industry.

UC3845D Documents

Download datasheets and manufacturer documentation for UC3845D

Datasheets :

UC1842-45, UC2842-45, UC3842-45      

HTML Datasheet :

UC1842-45, UC2842-45, UC3842-45      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018       US18/28/38 DataSheet Update 4/Jan/2017