The UCC38083P is a versatile phase-shift Pulse Width Modulation (PWM) controller designed by Texas Instruments, tailored for efficient control of power supplies. It is a key component in applications requiring precise power regulation, such as switched-mode power supplies (SMPS), server power supplies, telecom power supplies, and DC-to-DC converters.

Key Features

• Advanced PWM Control: The UCC38083P incorporates advanced PWM circuitry that enables phase-shifted switching, providing soft-switching capabilities that reduce electromagnetic interference (EMI) and increase efficiency.
• Wide Supply Voltage Range: This controller operates with a supply voltage range from 10V to 20V, making it suitable for a variety of power systems.
• Programmable Switching Frequency: Users can program the switching frequency from 10 kHz to 1 MHz, allowing flexibility in the design of the power supply to meet specific application requirements.
• High-Current Totem-Pole Outputs: The device features high-current totem-pole outputs capable of directly driving power MOSFETs, simplifying the design and reducing external component count.
• Soft-Start Function: The UCC38083P includes a soft-start function that gradually ramps up the output voltage, minimizing stress on the power supply during startup.
• Protection Features: It has built-in overcurrent protection and an under-voltage lockout (UVLO) feature to ensure safe operation under abnormal conditions.

Applications

The UCC38083P is an ideal choice for a broad range of applications that require efficient power management. It is commonly used in:

• Isolated and non-isolated power supplies
• Telecommunications equipment
• Servers and networking gear
• Industrial systems
• DC-to-DC converters

Package and Availability

The Texas Instruments UCC38083P is offered in a PDIP-8 (Plastic Dual-In-Line Package) and is available for order through Texas Instruments' official distributors. Designers can leverage the comprehensive support and resources provided by Texas Instruments, including datasheets, reference designs, and technical support to accelerate the product development process.