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UCC3813N1 from UNITRODE

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UCC3813N1

Manufacturer: UNITRODE

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Partnumber Manufacturer Quantity Availability
UCC3813N1 UNITRODE 165 In Stock

Description and Introduction

0 The UCC3813N1 is a PWM controller manufactured by UNITRODE (now part of Texas Instruments). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** UNITRODE (Texas Instruments)  
- **Type:** Current Mode PWM Controller  
- **Operating Voltage Range:** 8.5V to 12V (start-up), 7.6V to 12V (operating)  
- **Frequency Range:** Adjustable up to 1MHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** PDIP-8 (Plastic Dual In-Line Package)  

### **Descriptions:**  
- The UCC3813N1 is a high-performance current-mode PWM controller designed for offline and DC-DC power supplies.  
- It includes features like under-voltage lockout (UVLO), cycle-by-cycle current limiting, and soft-start control.  
- The device is optimized for forward, flyback, and boost converter applications.  

### **Features:**  
- **Current-Mode Control:** Enhances loop response and simplifies compensation.  
- **Programmable Oscillator:** Allows frequency adjustment with external components.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within voltage limits.  
- **High-Current Totem Pole Output:** Suitable for driving power MOSFETs.  
- **Internal Leading-Edge Blanking:** Improves noise immunity in current sensing.  

This information is based on the manufacturer's datasheet and technical documentation.

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