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UC1843AMDREP from TI,Texas Instruments

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UC1843AMDREP

Manufacturer: TI

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC1843AMDREP TI 2500 In Stock

Description and Introduction

Current Mode PWM Controller The UC1843AMDREP is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology**: Current-mode PWM controller  
- **Input Voltage Range**: Up to 30V  
- **Operating Frequency**: Up to 500kHz  
- **Output Current**: 1A (peak)  
- **Duty Cycle Range**: 0% to 100%  
- **Error Amplifier Bandwidth**: 1MHz  
- **Start-Up Current**: <1mA  
- **Operating Temperature Range**: -40°C to +85°C  
- **Package**: SOIC-8  

### **Descriptions:**  
The UC1843AMDREP is designed for high-efficiency power supply applications. It features precise duty cycle control, cycle-by-cycle current limiting, and under-voltage lockout (UVLO) protection.  

### **Features:**  
- **Current-Mode Operation**: Improves loop response and simplifies compensation.  
- **Programmable Oscillator**: Allows flexible frequency setting with an external resistor and capacitor.  
- **Soft-Start Capability**: Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO)**: Ensures proper operation only within safe voltage levels.  
- **High-Current Totem Pole Output**: Directly drives power MOSFETs.  
- **Low Power Consumption**: Optimized for energy-efficient designs.  

This device is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and offline power applications.

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