UCC28710DR

The UCC28710DR from Texas Instruments is an AC/DC switching regulator belonging to the AC/DC Converters, Offline Switches category. This device is designed for efficient power management, offering constant-voltage (CV) and constant-current (CC) output regulation.

Key electrical specifications include an operating voltage range of 9V to 35V and a switching frequency that can range from 680Hz up to 100kHz. It features a high-voltage startup switch rated at 700V and achieves a maximum duty cycle of 99%. The controller is designed for high-power density charger applications and operates with resonant valley-switching for improved efficiency. It also boasts a no-load power consumption of less than 10mW and provides ±5% voltage and current regulation across line and load variations.

This component is housed in a 7-SOIC surface-mount package. The operating temperature range is -40°C to 125°C (TJ). Fault protection features include current limiting and overvoltage protection.

Designed for applications requiring efficient offline power conversion, the UCC28710DR integrates primary-side regulation, eliminating the need for an opto-coupler. Its features like frequency jitter aid in EMI compliance, and a wide VDD range allows for a small bias capacitor.