The UCC3809PTR-2 is a versatile and efficient PWM (Pulse Width Modulation) controller from Texas Instruments designed for power supply applications. This integrated circuit is engineered to facilitate the creation of low-power, high-performance switch-mode power supplies with minimal external components.

Key Features

• Programmable Switching Frequency: The UCC3809PTR-2 allows users to set the operating frequency anywhere from 10 kHz to 1 MHz, providing flexibility in the design of the power supply to optimize for efficiency and component size.
• Low Startup and Operating Current: This device features a low startup current of 0.5 µA and an operating current of 2.5 mA, making it an excellent choice for energy-sensitive applications.
• Peak Current Mode Control: It utilizes peak current mode control which simplifies the loop compensation and provides inherent input voltage feed-forward compensation.
• Drive Capability: The UCC3809PTR-2 can directly drive a power MOSFET, enhancing the efficiency of the power supply design.
• Soft Start: The built-in soft-start function limits inrush current during startup, thereby improving system reliability.
• Green Product: It is a RoHS compliant product, which means it is free from hazardous materials and is environmentally friendly.

Applications

The UCC3809PTR-2 is suitable for a diverse range of applications, including but not limited to:

• Offline Power Supplies
• DC-to-DC Converters
• Telecommunication Power Supplies
• Industrial Power Systems
• Consumer Electronics

Package and Quality

Packaged in a TSSOP-8 (Thin Shrink Small Outline Package), the UCC3809PTR-2 is compact and suitable for space-constrained applications. Texas Instruments is known for its commitment to quality, and this product is no exception, meeting high standards of performance and reliability.