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UC2851N from TI,Texas Instruments

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UC2851N

Manufacturer: TI

Programmable, Off-Line, PWM Controller

Partnumber Manufacturer Quantity Availability
UC2851N TI 8 In Stock

Description and Introduction

Programmable, Off-Line, PWM Controller The UC2851N is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Input Voltage Range:** 10V to 22V  
- **Operating Frequency:** Up to 500kHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5MHz  
- **Soft-Start Capability:** Yes  
- **Undervoltage Lockout (UVLO):** Adjustable  
- **Package:** 16-Pin PDIP, SOIC  

### **Descriptions and Features:**  
- **Current-Mode Control:** Provides cycle-by-cycle current limiting for improved transient response.  
- **Programmable Oscillator:** Allows frequency adjustment with external components.  
- **Precision Reference:** 5V, ±1% tolerance bandgap reference.  
- **Error Amplifier:** High-gain, wide-bandwidth amplifier for feedback loop control.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Protection Features:** Includes undervoltage lockout (UVLO) and overcurrent protection.  
- **Applications:** Used in switch-mode power supplies (SMPS), DC-DC converters, and offline power supplies.  

This information is based on the UC2851N datasheet from Texas Instruments.

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