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UC3844DTRG4 from TI,Texas Instruments

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UC3844DTRG4

Manufacturer: TI

Current-Mode PWM Controller 14-SOIC 0 to 70

Partnumber Manufacturer Quantity Availability
UC3844DTRG4 TI 2530 In Stock

Description and Introduction

Current-Mode PWM Controller 14-SOIC 0 to 70 The UC3844DTRG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 8.5V to 30V (operating), 7.9V (start-up), 30V (max)  
- **Output Frequency:** Up to 500 kHz  
- **Duty Cycle Range:** 0% to 50% (adjustable)  
- **Output Current (Peak):** 1A (source/sink)  
- **Error Amplifier Bandwidth:** 1 MHz  
- **Reference Voltage:** 5V ±1%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC3844DTRG4 is designed for offline and DC-DC converter applications. It provides precise duty cycle control with current-mode operation for improved transient response and simplified loop compensation. The device includes an under-voltage lockout (UVLO) feature, ensuring reliable operation.  

### **Features:**  
- **Current-Mode Control:** Enhances line and load regulation  
- **Adjustable Oscillator Frequency:** Set by external components  
- **Under-Voltage Lockout (UVLO):** Ensures proper start-up and shutdown  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads  
- **Internal Trimmed Reference:** 5V with ±1% accuracy  
- **Low Start-Up Current:** Typically 0.5 mA  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs  

This information is based solely on the manufacturer's datasheet for the UC3844DTRG4.

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