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UC2843A from MSC

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UC2843A

Manufacturer: MSC

Linear High-Performance Current Mode Controller

Partnumber Manufacturer Quantity Availability
UC2843A MSC 1840 In Stock

Description and Introduction

Linear High-Performance Current Mode Controller The UC2843A is a high-performance current-mode PWM controller manufactured by MSC (Micro Semiconductor Corp).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range:** Up to 30V  
- **Operating Frequency:** Adjustable up to 500kHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage:** 5V (±1%)  
- **Start-up Current:** <1mA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** PDIP-8, SOIC-8  

### **Descriptions:**  
The UC2843A is designed for offline and DC-DC converter applications, providing precise control for power supplies. It features high-speed switching, cycle-by-cycle current limiting, and undervoltage lockout (UVLO) with hysteresis.  

### **Features:**  
- **Current-Mode Operation:** Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Undervoltage Lockout (UVLO):** Ensures reliable start-up and shutdown.  
- **Programmable Soft-Start:** Reduces inrush current.  
- **Internal Trimmed Bandgap Reference:** Provides stable 5V reference.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Low Start-up and Operating Current:** Improves efficiency.  

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

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