0 The UCC3813PW-0 is a BiCMOS power factor correction (PFC) controller manufactured by Texas Instruments (TI)/Unitrode. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)/Unitrode
- **Package:** 20-pin TSSOP (PW)
- **Operating Temperature Range:** 0°C to 70°C
- **Supply Voltage (VCC):** 12V to 17V (recommended)
- **Maximum Supply Voltage (VCC):** 20V (absolute max)
- **Output Drive Current:** ±500mA (peak)
- **Switching Frequency:** Up to 250kHz
- **Reference Voltage (VREF):** 7.5V (typical)
- **Total Power Dissipation:** 1W (max)
### **Descriptions:**
- The UCC3813PW-0 is a high-performance, average current-mode PFC controller designed for active power factor correction in AC/DC power supplies.
- It operates in continuous conduction mode (CCM) and provides precise current shaping to achieve near-unity power factor.
- The device includes features like soft-start, overvoltage protection (OVP), and undervoltage lockout (UVLO).
### **Features:**
- **Average Current Mode Control:** Ensures low distortion input current.
- **Precision Reference Voltage:** 7.5V ±1% for accurate regulation.
- **Programmable Switching Frequency:** Adjustable up to 250kHz.
- **Soft-Start Function:** Reduces inrush current during startup.
- **Overvoltage Protection (OVP):** Prevents output overvoltage conditions.
- **Undervoltage Lockout (UVLO):** Ensures proper operation within supply range.
- **Low Startup Current:** Typically 150µA for efficient operation.
- **BiCMOS Technology:** Combines low power consumption with high-speed performance.
This information is based solely on the manufacturer's datasheet for the UCC3813PW-0.
