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UC2844AN from UNITRODE

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UC2844AN

Manufacturer: UNITRODE

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
UC2844AN UNITRODE 17 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER The UC2844AN is a high-performance current-mode PWM controller manufactured by UNITRODE. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage (VIN):** Up to 30V  
- **Output Current (IOUT):** ±1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage (VREF):** 5V (±1%)  
- **Start-up Current:** <1mA  

### **Descriptions:**  
- The UC2844AN is designed for offline and DC-to-DC converter applications.  
- It features a trimmed oscillator for precise duty cycle control.  
- Includes a high-gain error amplifier for tight voltage regulation.  
- Provides current sensing and limiting for enhanced protection.  

### **Features:**  
- **Current-Mode Operation:** Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **Pulse-by-Pulse Current Limiting:** Protects against overloads.  
- **Soft-Start Capability:** Reduces inrush current.  
- **Totem Pole Output:** Optimized for driving power MOSFETs.  
- **Low Power Consumption:** Suitable for energy-efficient designs.  

The UC2844AN is commonly used in power supplies, battery chargers, and flyback converters.

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