0 The UCC3813PWTR-0 is a power factor correction (PFC) controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Part Number:** UCC3813PWTR-0
- **Type:** Average Current Mode PFC Controller
- **Package:** TSSOP-20
- **Operating Temperature Range:** -40°C to +85°C
- **Supply Voltage (VCC):** 10V to 17V
- **Maximum Duty Cycle:** 95%
- **Switching Frequency:** Adjustable up to 250kHz
- **Current Sense Input Range:** ±1.5V
- **Reference Voltage (VREF):** 7.5V ±1%
- **Start-Up Current:** 150µA (typical)
- **Low Power Consumption:** 3mA (typical operating current)
### **Descriptions:**
The UCC3813PWTR-0 is a BiCMOS power factor correction controller designed for boost-type pre-regulators. It operates in average current mode control, ensuring low harmonic distortion and near-unity power factor. The device includes features for reliable PFC operation, such as soft-start, overvoltage protection, and undervoltage lockout (UVLO).
### **Features:**
- **Average Current Mode Control:** Ensures low input current distortion.
- **Programmable Switching Frequency:** Adjustable up to 250kHz.
- **Soft-Start Function:** Reduces inrush current during startup.
- **Overvoltage Protection (OVP):** Prevents output voltage overshoot.
- **Undervoltage Lockout (UVLO):** Ensures proper operation within supply voltage limits.
- **Low Start-Up Current:** 150µA (typical).
- **Precision Reference Voltage:** 7.5V ±1% for accurate regulation.
- **TSSOP-20 Package:** Compact and suitable for space-constrained applications.
This information is strictly based on the manufacturer's datasheet and technical documentation.
