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UC2843AQD8RG4Q1 from TI,Texas Instruments

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UC2843AQD8RG4Q1

Manufacturer: TI

Automotive Catalog Current-Mode PWM Controller 8-SOIC -40 to 125

Partnumber Manufacturer Quantity Availability
UC2843AQD8RG4Q1 TI 5000 In Stock

Description and Introduction

Automotive Catalog Current-Mode PWM Controller 8-SOIC -40 to 125 The **UC2843AQD8RG4Q1** is a current-mode PWM controller manufactured by **Texas Instruments (TI)**. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VCC):** 8.5V to 30V (operating), up to 36V (absolute max)  
- **Output Current (Source/Sink):** 1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage (VREF):** 5V ±1%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8 (D)  

### **Descriptions:**  
- Designed for **offline and DC-DC converter** applications.  
- Features **current-mode control** for improved loop response and simplified compensation.  
- Includes **undervoltage lockout (UVLO)** with hysteresis for reliable startup.  
- Provides **soft-start** capability to reduce inrush current.  
- **Auto-restart protection** for fault conditions like overcurrent or overload.  

### **Key Features:**  
- **Precision 5V Reference (±1%)**  
- **Adjustable Oscillator Frequency**  
- **Current-Limiting and Shutdown Functions**  
- **Low Startup and Operating Current**  
- **High-Current Totem Pole Output (1A Peak)**  
- **Latching PWM for Cycle-by-Cycle Current Limiting**  

This IC is commonly used in **power supplies, battery chargers, and LED drivers**.  

(Source: Texas Instruments Datasheet)

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