Overview of Texas Instruments UCC2808D

The UCC2808D is a robust and efficient low-power pulse-width modulator (PWM) controller from Texas Instruments, designed for a wide variety of power supply applications. This advanced integrated circuit is part of the UCC2808 series and is specifically engineered to facilitate the development of compact and reliable power supplies with minimal external components.

Key Features

• Dual Output Drive Stages: The UCC2808D features dual non-overlapping outputs that can directly drive power MOSFETs, ensuring efficient power conversion with reduced cross-conduction losses.
• Wide Supply Voltage Range: This device operates over a supply voltage range of 4.5V to 15V, making it versatile for various applications and compatible with different system voltages.
• Programmable Switching Frequency: Users can set the switching frequency anywhere from 10kHz to 1MHz, providing flexibility in optimizing the power supply design for efficiency or component size.
• Low Startup and Operating Current: The UCC2808D is optimized for low power consumption, with a startup current of typically 0.5µA and an operating current of typically 2.5mA, which enhances the overall efficiency of the power supply.
• Under-Voltage Lockout (UVLO): Both the startup and operating UVLO thresholds are programmed accurately to ensure reliable operation of the power supply.

Applications

The versatility of the UCC2808D makes it suitable for a broad range of applications, including:

• Off-line power supplies
• DC-DC converters
• Telecommunication equipment
• Portable electronics
• Industrial and medical equipment

Package and Availability

The Texas Instruments UCC2808D is available in an 8-pin SOIC package, which is suitable for surface mount technology (SMT) and occupies minimal space on a printed circuit board (PCB). The device's compact form factor, coupled with its advanced features, makes it an excellent choice for space-constrained applications requiring efficient power management.

For designers and engineers looking to incorporate a reliable PWM controller into their power supply designs, the UCC2808D provides a balance of performance, flexibility, and ease of use. With Texas Instruments' reputation for quality and support, this device is a dependable choice for a wide array of power conversion challenges.