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UCC3803PWTRG4 from TI/BB,Texas Instruments

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UCC3803PWTRG4

Manufacturer: TI/BB

Low-Power BiCMOS Current-Mode PWM 8-TSSOP 0 to 70

Partnumber Manufacturer Quantity Availability
UCC3803PWTRG4 TI/BB 26 In Stock

Description and Introduction

Low-Power BiCMOS Current-Mode PWM 8-TSSOP 0 to 70 The UCC3803PWTRG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI) and formerly by Burr-Brown (BB).  

### **Specifications:**  
- **Control Method:** Current-Mode PWM  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Frequency Range:** Up to 1MHz  
- **Operating Voltage (VCC):** 8.5V to 12V (start-up), 7.6V to 12V (operating)  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Propagation Delay:** 50ns (typical)  
- **UVLO (Undervoltage Lockout):** 7.6V (turn-on), 7.2V (turn-off)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin TSSOP (PW)  

### **Descriptions:**  
The UCC3803PWTRG4 is designed for high-frequency switching power supplies, offering precise current-mode control with fast response. It includes features like soft-start, cycle-by-cycle current limiting, and under-voltage lockout (UVLO) for robust operation.  

### **Features:**  
- **High-Speed Operation:** Supports switching frequencies up to 1MHz.  
- **Current-Mode Control:** Enhances transient response and simplifies loop compensation.  
- **Integrated Soft-Start:** Reduces inrush current during startup.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Low Startup Current:** Typically 150µA.  
- **Wide Operating Voltage Range:** Supports various power supply designs.  
- **Thermal Shutdown:** Prevents overheating.  

This device is commonly used in AC/DC converters, DC/DC converters, and power management applications.  

(Data sourced from Texas Instruments' official documentation.)

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