Texas Instruments

UCC27710DR

The UCC27710DR is a high-voltage, high-power factor, step-up/step-down PWM controller from Texas Instruments. It is designed for offline, non-isolated power supplies and offers a wide input voltage range of 45V to 440V. The device is suitable for a variety of applications, including industrial and consumer electronics.

Description:

The UCC27710DR is a monolithic, high-voltage PWM controller that integrates a high-voltage power MOSFET driver and a current-sense amplifier. It features a fixed 65kHz switching frequency and a proprietary Burst Mode operation to minimize power consumption during light load conditions. The device is available in a thermally enhanced 20-pin HSOP package.

Features:

1. Wide input voltage range: 45V to 440V
2. Fixed 65kHz switching frequency
3. Burst Mode operation for low power consumption during light load conditions
4. High-voltage power MOSFET driver and current-sense amplifier integrated
5. Thermal shutdown and over-temperature warning
6. Over-current protection
7. Under-voltage lockout (UVLO)
8. Programmable soft-start
9. Programmable dead time
10. 20-pin HSOP package

Applications:

1. Industrial power supplies
2. AC-DC power adapters
3. Telecommunication power supplies
4. Computer power supplies
5. Consumer electronics power supplies
6. LED lighting power supplies
7. Medical power supplies
8. Uninterruptible Power Supplies (UPS)

The UCC27710DR PWM controller offers a versatile solution for designing high-voltage, high-power factor power supplies with a wide input voltage range and low power consumption during light load conditions. Its integrated features and robust protection functions make it suitable for a wide range of applications in industrial, consumer, and other electronics.