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UC3845-D8 from UC

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UC3845-D8

Manufacturer: UC

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC3845-D8,UC3845D8 UC 980 In Stock

Description and Introduction

Current-Mode PWM Controller The UC3845-D8 is a current-mode PWM controller manufactured by Texas Instruments. Here are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 8.5V to 30V (operating range)  
- **Output Frequency:** Adjustable up to 500 kHz  
- **Duty Cycle:** Up to 100% (with external components)  
- **Output Current (Peak):** ±1A (source/sink)  
- **Reference Voltage:** 5V (±1% accuracy)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8 (D8)  

### **Descriptions:**  
- The UC3845-D8 is designed for offline and DC-DC converter applications.  
- It provides precise duty cycle control with current-mode operation for improved loop response.  
- Includes features like under-voltage lockout (UVLO), cycle-by-cycle current limiting, and a built-in trimmed oscillator.  

### **Features:**  
- **Current-Mode Control:** Enhances line and load regulation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper startup and shutdown.  
- **Trimmed Oscillator:** Allows precise frequency setting with external components.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Error Amplifier:** High-gain bandwidth for stable feedback control.  
- **Pulse-by-Pulse Current Limiting:** Protects against overloads.  

This information is based solely on the manufacturer's datasheet.

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