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UC2843D8 from UC

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UC2843D8

Manufacturer: UC

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2843D8 UC 155 In Stock

Description and Introduction

Current-Mode PWM Controller The UC2843D8 is a high-performance current-mode PWM controller manufactured by Texas Instruments.  

### **Key Specifications:**  
- **Input Voltage Range:** 8.5V to 30V  
- **Operating Frequency:** Up to 500kHz  
- **Output Duty Cycle:** 0% to 100% (adjustable)  
- **Current Sensing:** Precision current-mode control  
- **Start-Up Current:** <1mA  
- **Under-Voltage Lockout (UVLO):** 8.4V (on) / 7.6V (off)  
- **Output Drive Current:** ±1A (peak)  
- **Package:** 8-Pin SOIC (D8)  

### **Features:**  
- **Current-Mode Operation:** Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Pulse-by-Pulse Current Limiting:** Provides cycle-by-cycle protection.  
- **Internal Trimmed Bandgap Reference:** 5V ±1% accuracy.  
- **Latching PWM for Over-Voltage Protection:** Ensures system safety.  
- **Soft-Start Capability:** Reduces inrush current.  
- **Low Power Consumption:** Optimized for efficiency.  

The UC2843D8 is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and battery chargers.

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