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UC2843AD8TRG4 from TI,Texas Instruments

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UC2843AD8TRG4

Manufacturer: TI

Current Mode PWM Controller 8-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
UC2843AD8TRG4 TI 5000 In Stock

Description and Introduction

Current Mode PWM Controller 8-SOIC -40 to 85 The **UC2843AD8TRG4** is a high-performance current-mode PWM controller manufactured by **Texas Instruments (TI)**.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range:** 7.6V to 30V (start-up), 7.6V to 30V (operating)  
- **Output Current:** Up to 1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 1MHz  
- **Low Startup Current:** <1mA  
- **Undervoltage Lockout (UVLO):** 7.6V (on), 7.0V (off)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The **UC2843AD8TRG4** is designed for offline and DC-DC converter applications, providing precise control over power delivery. It features high-speed switching, cycle-by-cycle current limiting, and a built-in error amplifier for feedback regulation.  

### **Features:**  
- **Current-Mode Operation:** Improved noise immunity and simplified loop compensation  
- **Automatic Feed-Forward Compensation:** Enhances line regulation  
- **Latching PWM for Cycle-by-Cycle Current Limiting:** Protects against overloads  
- **Internal Trimmed Bandgap Reference:** Ensures stable voltage regulation  
- **Soft-Start Capability:** Reduces inrush current  
- **Low Power Consumption:** Optimized for efficiency  

This device is commonly used in **switched-mode power supplies (SMPS), battery chargers, and industrial power systems**.  

(Source: Texas Instruments Datasheet)

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