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UC3843AD1013TR from ST,ST Microelectronics

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5.005ms

UC3843AD1013TR

Manufacturer: ST

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
UC3843AD1013TR ST 17500 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER The UC3843AD1013TR is a current-mode PWM controller manufactured by STMicroelectronics.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 8.5V to 30V  
- **Output Frequency:** Up to 500 kHz  
- **Duty Cycle:** 0% to 100% (adjustable)  
- **Output Current (Source/Sink):** 1A (peak)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC3843AD1013TR is designed for DC-DC converter applications, providing precise control over switching power supplies. It features a fixed-frequency oscillator, error amplifier, and current-sensing comparator for robust performance in power management circuits.  

### **Features:**  
- Adjustable duty cycle control  
- Under-voltage lockout (UVLO) protection  
- High-current totem-pole output  
- Internal trimmed bandgap reference  
- Low start-up and operating current  
- Pulse-by-pulse current limiting  

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

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