Texas Instruments

UCC28740DR

The UCC28740DR is a high-voltage, high-power pulse-width modulation (PWM) controller from Texas Instruments. It is designed for use in a variety of applications, including power supplies, motor control, and lighting systems.

Description:

The UCC28740DR is a monolithic integrated circuit that provides a complete solution for controlling high-voltage PWM applications. It features a high-voltage power stage, error amplifier, oscillator, and control logic, all in a single package.

Features:

• High-voltage power stage capable of handling up to 500V
• Wide input voltage range of 4.5V to 45V
• High-power output stage with up to 3A output current
• Precision error amplifier with low drift
• Oscillator with frequency range of 20 kHz to 150 kHz
• Programmable soft-start and burst mode
• Overcurrent protection, overvoltage protection, and thermal shutdown
• Small package size (5mm x 7mm)

Applications:

The UCC28740DR can be used in a variety of applications where high-voltage, high-power control is required. Some examples include:

1. Power supplies: The UCC28740DR can be used to control the output voltage and current of power supplies, providing efficient and stable power to a variety of devices.
2. Motor control: The high-voltage power stage and precision error amplifier make the UCC28740DR well-suited for controlling the speed and torque of motors in applications such as fans, pumps, and conveyors.
3. Lighting systems: The UCC28740DR can be used to control the brightness of high-voltage LED lighting systems, providing precise dimming control and improved efficiency.
4. Battery charging: The UCC28740DR can be used to control the charging voltage and current of batteries, improving charging efficiency and extending battery life.

Overall, the UCC28740DR is a versatile and powerful PWM controller that can be used in a wide range of applications requiring high-voltage, high-power control. Its small package size and integrated features make it an ideal choice for designers looking for a compact and efficient solution.