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UCC28C45DGKR from TI,Texas Instruments

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7.813ms

UCC28C45DGKR

Manufacturer: TI

BiCMOS Low-Power Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UCC28C45DGKR TI 1000 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC28C45DGKR is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VDD):** 8.5V to 18V  
- **Operating Frequency Range:** Up to 1MHz  
- **Duty Cycle Max:** 50%  
- **Output Current (Source/Sink):** 1A / 1A  
- **UVLO (Undervoltage Lockout):** 7.5V (on), 7V (off)  
- **Error Amplifier Bandwidth:** 5MHz  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** VSSOP-8 (DGKR)  

### **Descriptions:**  
The UCC28C45DGKR is designed for high-frequency power supply applications, offering precise control with current-mode operation. It includes features like undervoltage lockout (UVLO), cycle-by-cycle current limiting, and a high-gain error amplifier for improved regulation.  

### **Features:**  
- **Current-Mode Control:** Enhances loop response and simplifies compensation.  
- **High-Speed Operation:** Supports switching frequencies up to 1MHz.  
- **Integrated Soft-Start:** Reduces inrush current during startup.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Low Startup Current:** 0.5mA typical.  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  

This device is commonly used in AC/DC converters, DC/DC power supplies, and isolated power modules.  

(Source: Texas Instruments datasheet)

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