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UCC28C45DGK from TI,Texas Instruments

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UCC28C45DGK

Manufacturer: TI

BiCMOS Low-Power Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UCC28C45DGK TI 23 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC28C45DGK 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:** Up to 1MHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **UVLO (Undervoltage Lockout):** 8V (on), 7.6V (off)  
- **Current Sense Threshold:** 1V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** VSSOP-8 (DGK)  

### **Descriptions:**  
The UCC28C45DGK is designed for high-frequency power supply applications, offering precise control with current-mode operation. It includes features like adjustable switching frequency, soft-start, and cycle-by-cycle current limiting.  

### **Features:**  
- **Current-Mode Control:** Improves transient response and simplifies loop compensation.  
- **Programmable Switching Frequency:** Allows flexibility in design.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Cycle-by-Cycle Current Limiting:** Protects against overcurrent conditions.  
- **Low Startup Current:** Helps minimize power consumption.  
- **High Noise Immunity:** Ensures stable operation in noisy environments.  

This device is commonly used in AC/DC converters, DC/DC power supplies, and industrial power systems.

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