The UCC1800TD2 is a versatile and robust low-power BiCMOS current-mode pulse width modulation (PWM) controller designed by the renowned semiconductor manufacturer Texas Instruments. This advanced controller is engineered to cater to a wide range of power supply applications, including but not limited to, off-line converters, DC-DC converters, and battery-operated boost converters.

Key Features

• Flexible Power Supply: The UCC1800TD2 operates over a voltage range of 4.5V to 5.5V, making it suitable for various circuit configurations and ensuring compatibility with standard logic levels.
• Low Startup and Operating Current: This device is optimized for low power consumption, with a startup current of typically 100 µA and an operating current of typically 2.5 mA, contributing to overall system efficiency.
• High Frequency Operation: The controller can operate at frequencies up to 500 kHz, allowing for smaller-sized components, reduced output ripple, and a more compact power supply design.
• Current Mode Control: The current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
• Trimmed Oscillator Discharge Current: This feature ensures consistent and reliable operation of the PWM circuitry across different units and environmental conditions.

Applications

The UCC1800TD2 is designed to be a versatile component suitable for a variety of applications. Its high-frequency operation and low-power characteristics make it ideal for portable and compact power systems. Typical applications include:

• Off-line power supplies
• DC to DC converters
• Battery-operated devices
• Power supplies for telecommunications equipment
• Industrial power systems

Package and Availability

The UCC1800TD2 is offered in a compact 14-pin SOIC package, ensuring ease of integration into various circuit designs. Texas Instruments provides comprehensive technical support, including datasheets, reference designs, and application notes to facilitate the design-in process for engineers and product developers.

For pricing, availability, and additional technical resources, please visit the Texas Instruments official website or contact your local distributor.