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UC3842AD8TR from TI,Texas Instruments

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UC3842AD8TR

Manufacturer: TI

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC3842AD8TR TI 3 In Stock

Description and Introduction

Current Mode PWM Controller The UC3842AD8TR is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 16V (typical), 30V (max)  
- **Output Current (Gate Drive):** ±1A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8 (D8)  
- **UVLO (Undervoltage Lockout):** On: 16V (typ), Off: 10V (typ)  
- **Reference Voltage:** 5V (±1%)  
- **Current Sense Input Threshold:** 1V  

### **Descriptions:**  
The UC3842AD8TR is designed for DC-DC converter applications, providing precise control for switching power supplies. It features a trimmed oscillator for accurate duty cycle control, a temperature-compensated reference, and high-current totem-pole output for driving power MOSFETs.  

### **Features:**  
- **Current-Mode Operation** for improved loop response  
- **Automatic Feed-Forward Compensation**  
- **Latching PWM** for cycle-by-cycle current limiting  
- **Undervoltage Lockout (UVLO)** with hysteresis  
- **Internal Trimmed Bandgap Reference**  
- **High-Current Totem-Pole Output**  
- **Low Start-Up Current** (<1mA)  

This device is commonly used in offline and DC-DC converters, battery chargers, and power supply applications.  

(Note: All details are based on the manufacturer's datasheet.)

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