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UCC2809PW-1G4 from TEXAS

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UCC2809PW-1G4

Manufacturer: TEXAS

Economy Primary Side Controller

Partnumber Manufacturer Quantity Availability
UCC2809PW-1G4,UCC2809PW1G4 TEXAS 257 In Stock

Description and Introduction

Economy Primary Side Controller The UCC2809PW-1G4 is a power management IC manufactured by Texas Instruments (TEXAS). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments  
- **Part Number:** UCC2809PW-1G4  
- **Category:** PMIC - Power Management ICs  
- **Type:** PWM Controller  
- **Output Type:** Transistor Driver  
- **Topology:** Boost, Flyback, Forward  
- **Number of Outputs:** 1  
- **Switching Frequency:** Up to 1MHz  
- **Duty Cycle (Max):** 100%  
- **Supply Voltage (Vcc/Vdd):** 12V to 17V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package / Case:** TSSOP-16  
- **Mounting Type:** Surface Mount  

### **Descriptions:**
- The UCC2809PW-1G4 is a high-performance current-mode PWM controller designed for offline and DC-DC power supplies.  
- It features a fixed-frequency pulse-width modulation (PWM) control scheme with current-mode operation for improved transient response.  
- The device includes an integrated oscillator, error amplifier, and current-sensing comparator for precise regulation.  
- It is suitable for applications such as switch-mode power supplies (SMPS), AC/DC converters, and industrial power systems.  

### **Features:**
- **Current-Mode Control:** Enhances loop stability and transient response.  
- **Programmable Oscillator:** Allows flexible frequency setting via external components.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage limits.  
- **Leading-Edge Blanking:** Improves noise immunity in current sensing.  
- **High-Current Totem Pole Output:** Supports fast switching of power MOSFETs.  
- **Low Startup Current:** Reduces power consumption during initial operation.  

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

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