Overview of Texas Instruments UCC3813D-3G4

The Texas Instruments UCC3813D-3G4 is a high-performance, low-power BiCMOS current-mode pulse width modulator (PWM) controller. As part of the UCC3813x family of devices, it is designed to offer precise electrical control in a variety of power supply applications, including switch-mode power supplies, DC-DC converters, and battery management systems.

Key Features

• Voltage Range: The UCC3813D-3G4 operates with a supply voltage range of 8.5V to 21V, making it versatile for various power configurations.
• High-Frequency Operation: With a maximum operating frequency of up to 1MHz, this device is suitable for applications requiring high-speed switching.
• Low Startup and Operating Current: Its low startup current of 100µA and operating current of 1.1mA ensure minimal power loss and improved efficiency.
• 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 helps achieve precise dead-time and maximum duty cycle control.
• Drive Capability: The UCC3813D-3G4 can source up to 1A and sink up to 2A, making it capable of driving a wide range of power MOSFETs and IGBTs.

Applications

The UCC3813D-3G4 is ideal for a broad spectrum of applications, including:

• Off-line power supplies
• DC-DC converters
• Power factor correction circuits
• Telecommunications equipment
• Industrial power systems

Package and Quality

Enclosed in a 14-pin SOIC package, the UCC3813D-3G4 is designed for surface mount technology, offering a compact footprint for space-constrained applications. Texas Instruments ensures high-quality and reliability, with each device being rigorously tested to meet stringent industry standards.

With its combination of features, the UCC3813D-3G4 from Texas Instruments stands out as a robust and efficient solution for advanced power management challenges, delivering performance and reliability that engineers trust.