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UC3842AD1013TR from ST,ST Microelectronics

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UC3842AD1013TR

Manufacturer: ST

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
UC3842AD1013TR ST 7500 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER The UC3842AD1013TR is a current-mode PWM controller manufactured by STMicroelectronics. Below are the factual details about its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** STMicroelectronics  
- **Type:** Current-Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Output Configuration:** Single-Ended  
- **Switching Frequency:** Up to 500 kHz  
- **Duty Cycle Max:** 100%  
- **Supply Voltage (Vcc):** 7.6V to 30V  
- **Start-Up Voltage:** 16V (typical)  
- **UVLO (Undervoltage Lockout):** On Threshold: 16V (typical), Off Threshold: 10V (typical)  
- **Output Current (Source/Sink):** 200mA (typical) / 1A (peak)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC3842AD1013TR is a high-performance fixed-frequency current-mode PWM controller. It is designed for DC-DC converter applications and provides precise control for power supplies. The device includes a trimmed oscillator, temperature-compensated reference, high-gain error amplifier, current sensing comparator, and a totem-pole output stage.  

### **Features:**  
- **Current-Mode Operation:** Provides improved line and load regulation.  
- **Automatic Feed-Forward Compensation:** Simplifies loop stabilization.  
- **Latching PWM for Cycle-by-Cycle Current Limiting:** Enhances protection.  
- **Internal Trimmed Bandgap Reference:** Ensures accuracy (±1%).  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Low Start-Up Current (<1mA):** Reduces power consumption.  
- **Undervoltage Lockout (UVLO):** Ensures reliable operation.  
- **SOIC-8 Package:** Compact and suitable for space-constrained designs.  

This information is based on the manufacturer's datasheet for the UC3842AD1013TR.

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