Product Overview: UCC38084PWRG4

The UCC38084PWRG4 is a high-performance, low-power, current-mode pulse width modulation (PWM) controller from Texas Instruments. Designed for a wide range of power supply applications, this versatile chip provides efficient power management and is an ideal solution for switch-mode power supplies (SMPS). Its advanced features and robust design make it suitable for various applications, including AC-DC adapters, offline power converters, DC-DC modules, and more.

Key Features

• Current-Mode Control: The UCC38084PWRG4 operates using current-mode control, which provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
• Wide Supply Voltage Range: This PWM controller can operate over a wide supply voltage range, accommodating various application requirements.
• Low Startup and Operating Current: The device features a low startup current of 0.15 mA (typical) and an operating current of 2.5 mA (typical), making it an energy-efficient choice for power-sensitive designs.
• High-Frequency Operation: With the capability to operate up to 1 MHz, the UCC38084PWRG4 allows for smaller external components, resulting in compact and cost-effective power supply designs.
• Programmable Soft Start: The soft-start feature limits inrush current during startup, enhancing the reliability and longevity of the power supply.
• Built-in Error Amplifier: The integrated error amplifier simplifies feedback loop design and improves overall system stability.
• Under-Voltage Lockout (UVLO): UVLO protection ensures the controller operates only when the supply voltage is within an acceptable range, protecting the circuit from low-voltage conditions.

Applications

• AC-DC Power Supplies
• Isolated and Non-Isolated Bias Supplies
• DC-DC Converters
• Offline Power Converters
• Pre-Regulators for Linear Regulators

The UCC38084PWRG4 is available in a TSSOP-8 package, offering a compact footprint for space-constrained applications. Its advanced control features and high-frequency operation make it a flexible and efficient solution for a broad range of power management tasks. By integrating this controller into your power supply design, you can achieve a high-performance, reliable, and cost-effective power management system.