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UC3856DWG4 from N/A

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UC3856DWG4

Manufacturer: N/A

Improved Current Mode PWM Controller 16-SOIC 0 to 70

Partnumber Manufacturer Quantity Availability
UC3856DWG4 N/A 1 In Stock

Description and Introduction

Improved Current Mode PWM Controller 16-SOIC 0 to 70 The UC3856DWG4 is a power factor correction (PFC) controller manufactured by Texas Instruments. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments  
- **Category:** PMIC - Power Factor Correction  
- **Package:** SOIC-16  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 10V to 17V (VCC)  
- **Output Voltage:** Adjustable  
- **Switching Frequency:** Programmable up to 250kHz  
- **Control Method:** Average Current Mode  
- **Mounting Type:** Surface Mount  

### **Descriptions:**
The UC3856DWG4 is a high-performance PFC controller designed for active power factor correction in AC/DC power supplies. It operates in average current mode control, ensuring low harmonic distortion and high power factor. It is commonly used in applications requiring compliance with international power quality standards.

### **Features:**
- **Average Current Mode Control:** Ensures low distortion and high power factor.  
- **Programmable Oscillator:** Allows adjustment of switching frequency up to 250kHz.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within specified voltage ranges.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Peak Current Limiting:** Protects the circuit from overcurrent conditions.  
- **Multiplier/Divider Circuit:** Optimizes input current shaping.  
- **Wide Operating Voltage Range:** Supports 10V to 17V VCC supply.  
- **Low Startup Current:** Reduces power consumption during initial operation.  

This information is strictly based on the available technical data for the UC3856DWG4.

Application Scenarios & Design Considerations

Improved Current Mode PWM Controller 16-SOIC 0 to 70
Partnumber Manufacturer Quantity Availability
UC3856DWG4 TI 165 In Stock

Description and Introduction

Improved Current Mode PWM Controller 16-SOIC 0 to 70 The UC3856DWG4 is a Power Factor Correction (PFC) controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** UC3856DWG4  
- **Package:** SOIC-16 (DWG)  
- **Category:** PMIC - Power Factor Correction Controllers  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 15V to 35V (typical)  
- **Switching Frequency:** Adjustable (external programming)  
- **Output Drive Current:** 1A (peak)  
- **Control Method:** Average Current Mode Control  
- **Power Factor Correction:** Yes  

### **Descriptions:**  
The UC3856DWG4 is a high-performance PFC controller designed for active power factor correction in AC/DC power supplies. It employs average current mode control to maintain near-unity power factor and low harmonic distortion. The device is optimized for boost converter topologies and includes features for precise regulation and protection.  

### **Features:**  
- **Average Current Mode Control:** Ensures low harmonic distortion.  
- **Programmable Switching Frequency:** Allows flexibility in design.  
- **Precision Reference Voltage:** 7.5V ±1% for accurate regulation.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Overvoltage Protection (OVP):** Safeguards against excessive output voltage.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low supply conditions.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Low Startup Current:** Reduces power consumption during startup.  

This information is strictly based on the manufacturer's datasheet and technical specifications.

Application Scenarios & Design Considerations

Improved Current Mode PWM Controller 16-SOIC 0 to 70

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