Texas Instruments

UCC2807D-2

The UCC2807D-2 is a high-voltage, high-current pulse width modulation (PWM) controller from Texas Instruments. It is designed for use in a variety of power conversion applications, including DC-DC converters, motor control, and power supplies.

Description:

The UCC2807D-2 is a monolithic integrated circuit that provides a complete solution for controlling the switching of power transistors in a power conversion system. It includes an error amplifier, a current sense amplifier, a voltage feedback pin, and a high-voltage startup circuit. The device also features a fixed frequency oscillator and a dead time control circuit to ensure precise timing and minimize cross-conduction losses.

Features:

• High-voltage operation up to 80V
• High-side and low-side current sensing
• Fixed frequency oscillator with frequency jitter attenuator
• External clock input for frequency synchronization
• Power-save mode to reduce quiescent current
• Under-voltage lockout (UVLO) and over-temperature protection (OTP)
• Soft-start and burst mode operation
• Protection features such as cycle-by-cycle current limiting, thermal shutdown, and open-loop protection

Applications:

The UCC2807D-2 is suitable for a wide range of power conversion applications, including:

1. DC-DC converters for telecom and networking equipment
2. Motor control applications such as brushless DC (BLDC) motors and stepper motors
3. Industrial power supplies for machine control and automation systems
4. Battery charging systems for electric vehicles (EVs) and energy storage systems
5. LED lighting applications for streetlights, commercial lighting, and residential lighting

In summary, the UCC2807D-2 is a versatile and high-performance PWM controller that offers a range of features and protections to ensure reliable and efficient power conversion in various applications. Its high-voltage operation and robust protection features make it an ideal choice for demanding power conversion systems.