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UC2842AD1 from ST8,ST Microelectronics

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UC2842AD1

Manufacturer: ST8

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
UC2842AD1 ST8 4883 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER The UC2842AD1 is a high-performance current-mode PWM controller manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** Up to 30V  
- **Operating Frequency:** Up to 500kHz  
- **Output Current (Peak):** ±1A  
- **Duty Cycle Range:** 0% to 100%  
- **Start-Up Current:** <1mA  
- **Undervoltage Lockout (UVLO):** On-chip (8.4V turn-on, 7.6V turn-off)  
- **Error Amplifier Bandwidth:** 1MHz  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC2842AD1 is designed for offline and DC-DC converter applications, providing precise duty cycle control with current-mode operation. It includes features like cycle-by-cycle current limiting, soft-start capability, and a trimmed oscillator for accurate frequency control.  

### **Features:**  
- **Current-Mode Operation:** Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Latching PWM:** Ensures single-pulse response per clock cycle.  
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Internal Trimmed Bandgap Reference:** Provides stable voltage regulation.  
- **Low Operating Current:** Reduces power consumption.  

This device is commonly used in power supplies, battery chargers, and SMPS (Switched-Mode Power Supply) applications.

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