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UCC3809P-1 from TI/UNITRODE,Texas Instruments

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UCC3809P-1

Manufacturer: TI/UNITRODE

1

Partnumber Manufacturer Quantity Availability
UCC3809P-1,UCC3809P1 TI/UNITRODE 10 In Stock

Description and Introduction

1 The UCC3809P-1 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI) under the UNITRODE brand.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Operating Frequency:** Up to 1 MHz  
- **Supply Voltage (VCC):** 10V to 18V (operating range)  
- **UVLO (Undervoltage Lockout):** 8.4V (turn-on), 7.6V (turn-off)  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5 MHz  
- **Current Sense Comparator Delay:** 100 ns  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin PDIP  

### **Descriptions:**  
The UCC3809P-1 is designed for high-frequency power supply applications, offering precise current-mode control with fast response. It includes features like cycle-by-cycle current limiting, soft-start control, and an integrated error amplifier for feedback loop stability.  

### **Features:**  
- **High-Speed Operation:** Supports switching frequencies up to 1 MHz.  
- **Current-Mode Control:** Enhances transient response and simplifies loop compensation.  
- **Cycle-by-Cycle Current Limiting:** Protects against overcurrent conditions.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Low Startup Current:** Typically 150 µA.  
- **Internal Bandgap Reference:** Provides stable voltage reference (5V).  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within supply limits.  
- **Totem-Pole Output:** Capable of driving MOSFETs directly.  

This device is commonly used in DC-DC converters, offline power supplies, and other high-efficiency power management applications.

Partnumber Manufacturer Quantity Availability
UCC3809P-1,UCC3809P1 TI 80 In Stock

Description and Introduction

1 The UCC3809P-1 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Operating Frequency:** Up to 1MHz  
- **Input Voltage Range:** 8V to 17V (VCC)  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Start-up Current:** 150µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin PDIP  

### **Descriptions:**  
The UCC3809P-1 is designed for high-frequency switching power supplies, providing precise control for DC-DC converters. It features a current-mode architecture for improved transient response and simplified loop compensation.  

### **Features:**  
- **Current-Mode Control:** Enhances line and load regulation.  
- **Programmable Oscillator:** Allows frequency adjustment via external components.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within voltage limits.  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Low Power Consumption:** Optimized for efficiency.  
- **Error Amplifier:** Supports flexible feedback loop design.  

This information is sourced from TI's official documentation.

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