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UC3842ADTR from TEXAS

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UC3842ADTR

Manufacturer: TEXAS

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC3842ADTR TEXAS 2500 In Stock

Description and Introduction

Current Mode PWM Controller The UC3842ADTR is a high-performance current-mode PWM controller manufactured by Texas Instruments (TEXAS). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 16V (start-up), 10V (operating)  
- **Output Voltage:** Adjustable via external components  
- **Output Current:** Up to 1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle:** 0% to 100% (adjustable)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8 (DTR)  

### **Descriptions:**  
- The UC3842ADTR is a fixed-frequency pulse-width modulation (PWM) controller optimized for DC-DC converter and offline power supply applications.  
- It operates in current-mode control, improving loop response and simplifying compensation.  
- Includes features like under-voltage lockout (UVLO), cycle-by-cycle current limiting, and a totem-pole output for driving power MOSFETs.  

### **Features:**  
- **Current-Mode Control:** Enhances transient response and simplifies feedback loop design.  
- **Under-Voltage Lockout (UVLO):** Ensures proper start-up and shutdown behavior.  
- **Adjustable Oscillator Frequency:** Allows flexibility in design.  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Low Start-Up Current:** Reduces power consumption during start-up.  
- **Internal Reference Voltage:** 5V with ±1% tolerance.  

This information is strictly factual and sourced from the manufacturer's datasheet.

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