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UCC28084DRG4 from TI,Texas Instruments

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UCC28084DRG4

Manufacturer: TI

Current Mode Push-Pull PWM With Programmable Slope Compensation 8-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
UCC28084DRG4 TI 2530 In Stock

Description and Introduction

Current Mode Push-Pull PWM With Programmable Slope Compensation 8-SOIC -40 to 85 The UCC28084DRG4 is a PFC (Power Factor Correction) controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Transition Mode (TM) PFC  
- **Input Voltage Range:** 85 VAC to 265 VAC  
- **Output Voltage Range:** Adjustable (typically up to 400 V)  
- **Switching Frequency:** Variable (depends on load and line conditions)  
- **Maximum Duty Cycle:** 97%  
- **Operating Temperature Range:** -40°C to +105°C  
- **Package:** SOIC-8  
- **Control Method:** Average Current Mode Control  
- **Startup Current:** 60 µA (typical)  
- **Supply Voltage (VCC):** 10.5 V to 22 V  

### **Descriptions:**  
The UCC28084DRG4 is a high-performance, low-power PFC controller designed for transition mode operation. It improves power factor and reduces harmonic distortion in AC-DC power supplies. The device features average current mode control for accurate current shaping and includes protections such as overvoltage, undervoltage, and open-loop detection.  

### **Features:**  
- **Transition Mode Operation:** Reduces switching losses for improved efficiency.  
- **Low Power Consumption:** Low startup and operating current.  
- **Integrated Protections:** Overvoltage (OVP), undervoltage (UVP), and open-loop protection.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Internal Voltage Reference:** 5 V ±1.5% accuracy.  
- **Zero-Current Detection (ZCD):** Ensures boundary conduction mode operation.  

This device is commonly used in power supplies, LED drivers, and industrial applications requiring high power factor correction.

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