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UCC3809N1 from TI,Texas Instruments

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5.005ms

UCC3809N1

Manufacturer: TI

1

Partnumber Manufacturer Quantity Availability
UCC3809N1 TI 93 In Stock

Description and Introduction

1 The UCC3809N1 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** Current-Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Operating Frequency:** Up to 1MHz  
- **Supply Voltage (VCC):** 8V to 17V  
- **Output Current (Source/Sink):** 1A (Peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Start-Up Current:** 0.5mA (Typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  

### **Descriptions:**  
The UCC3809N1 is a high-speed, low-power current-mode PWM controller designed for offline and DC-DC power supplies. It features a built-in oscillator, error amplifier, and current-sensing comparator for precise regulation. The device is optimized for high-efficiency power conversion applications.  

### **Features:**  
- **Current-Mode Control:** Provides cycle-by-cycle current limiting.  
- **Low Start-Up Current:** Enables efficient operation in standby mode.  
- **Adjustable Switching Frequency:** Allows flexibility in design.  
- **Under-Voltage Lockout (UVLO):** Ensures reliable operation within the specified voltage range.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Leading-Edge Blanking:** Improves noise immunity in current sensing.  

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

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