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UCC38500DW

BiCMOS PFC/PWM Combination Controller

Partnumber Manufacturer Quantity Availability
UCC38500DW 152 In Stock

Description and Introduction

BiCMOS PFC/PWM Combination Controller The UCC38500DW is a power factor correction (PFC) controller manufactured by Texas Instruments. Below are its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments  
- **Package:** SOIC-16 (DW)  
- **Input Voltage Range:** 85V to 265V AC  
- **Output Voltage:** Adjustable  
- **Switching Frequency:** Up to 250 kHz  
- **Operating Temperature Range:** -40°C to 85°C  
- **Control Method:** Average Current Mode Control  
- **Supply Voltage (VCC):** 12V to 17.5V  
- **Peak Gate Drive Current:** ±1.5A  

### **Descriptions:**
The UCC38500DW is a high-performance PFC controller designed for boost-type power factor correction circuits. It uses average current mode control to achieve near-unity power factor and low harmonic distortion. It is suitable for AC/DC power supplies, industrial systems, and other applications requiring power factor correction.

### **Features:**
- **Power Factor Correction:** Achieves near-unity power factor (PF > 0.99).  
- **Low THD:** Minimizes total harmonic distortion (<5%).  
- **Programmable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Overvoltage Protection (OVP):** Prevents excessive output voltage.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low supply conditions.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Average Current Mode Control:** Ensures stable operation and fast transient response.  
- **High Gate Drive Capability:** Supports high-power MOSFETs.  

This information is based solely on the manufacturer's datasheet and technical documentation.

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