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UC1843AMDREPG4 from TI,Texas Instruments

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15.625ms

UC1843AMDREPG4

Manufacturer: TI

Enhanced Product Current-Mode Pwm Controller 8-SOIC -55 to 125

Partnumber Manufacturer Quantity Availability
UC1843AMDREPG4 TI 2 In Stock

Description and Introduction

Enhanced Product Current-Mode Pwm Controller 8-SOIC -55 to 125 The UC1843AMDREPG4 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 (Source/Sink)**: 1A (peak)  
- **Duty Cycle Range**: 0% to 100%  
- **Error Amplifier Bandwidth**: 1MHz  
- **Start-Up Current**: <1mA  
- **UVLO (Undervoltage Lockout)**: On-chip  
- **Package**: SOIC-8  

### **Descriptions:**  
The UC1843AMDREPG4 is designed for high-efficiency power supply applications. It features precise duty cycle control, cycle-by-cycle current limiting, and a built-in undervoltage lockout (UVLO) for reliable operation.  

### **Features:**  
- **Current-Mode Operation**: Improved loop response and simplified compensation  
- **Programmable Oscillator**: Adjustable frequency with external components  
- **Soft-Start Capability**: Reduces inrush current  
- **Pulse-by-Pulse Current Limiting**: Enhances system protection  
- **Low Power Consumption**: Suitable for battery-powered applications  
- **High Noise Immunity**: Robust performance in noisy environments  

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

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