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UC2844N from ON,ON Semiconductor

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15.625ms

UC2844N

Manufacturer: ON

HIGH PERFORMANCE CURRENT MODE CONTROLLERS

Partnumber Manufacturer Quantity Availability
UC2844N ON 3091 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE CONTROLLERS The UC2844N is a high-performance current-mode PWM controller manufactured by ON Semiconductor.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Operating Frequency:** Up to 500 kHz  
- **Input Voltage Range:** 8V to 30V (start-up voltage ~16V)  
- **Output Current (Source/Sink):** 1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 1 MHz  
- **Reference Voltage:** 5V (±1%)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin DIP (PDIP-8)  

### **Descriptions & Features:**  
- **Current-Mode Control:** Provides cycle-by-cycle current limiting for improved transient response.  
- **Under-Voltage Lockout (UVLO):** Ensures proper start-up and shutdown behavior.  
- **Soft-Start Capability:** Reduces inrush current during start-up.  
- **Internal Trimmed Reference:** 5V precision reference for stable operation.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Low Start-Up Current:** Typically 0.5 mA.  
- **Pulse-by-Pulse Current Limiting:** Enhances system reliability.  
- **Wide Supply Range:** Suitable for offline and DC-DC applications.  

The UC2844N is commonly used in power supply designs, including flyback, forward, and boost converters.

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