The UCC28070APWR is an integrated circuit (IC) component manufactured by Texas Instruments. It is a primary-side controller specifically designed for use in flyback and forward power supply applications. This component offers various features that make it highly versatile and reliable. Let's explore some of its key features in detail:
1. Primary-Side Control: The UCC28070APWR is capable of providing accurate control of primary-side switch conduction, eliminating the need for a dedicated secondary-side feedback circuit. This significantly simplifies the design of power supplies.
2. Wide Input Voltage Range: The component can operate from a wide input voltage range, between 4.5V to 30V. This allows it to be used in a diverse range of power supply applications.
3. Advanced Protection Features: The UCC28070APWR incorporates several advanced protection features to ensure the safety and reliability of the power supply. These include overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown protection.
4. Frequency Modulation: The IC component provides frequency modulation to minimize electromagnetic interference (EMI) and improve system efficiency by reducing switching losses.
5. Soft Start and Maximum Duty Cycle Control: It features a programmable soft start functionality, enabling controlled start-up of the power supply to prevent excessive inrush current. Additionally, the maximum duty cycle control ensures safe operation even under no-load or light-load conditions
