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UCC28C43DGK from TI,Texas Instruments

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UCC28C43DGK

Manufacturer: TI

BiCMOS Low-Power Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UCC28C43DGK TI 6 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC28C43DGK is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VCC):** 8.5V to 18V (operating), 20V (max)  
- **Output Drive Current:** ±1A (peak)  
- **Switching Frequency:** Up to 1MHz  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5MHz  
- **Operating Temperature Range:** -40°C to +105°C  
- **Package:** 8-pin VSSOP (DGK)  

### **Descriptions and Features:**  
- **Current-Mode Control:** Provides cycle-by-cycle current limiting for improved transient response.  
- **Adjustable Frequency:** External resistor and capacitor allow frequency programming.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within specified voltage range.  
- **Internal Trimmed Reference:** 5V ±1% accuracy.  
- **Low Startup Current:** Typically 0.5mA.  
- **Synchronization Capability:** Allows synchronization to an external clock.  
- **High Noise Immunity:** Robust design for stable operation in noisy environments.  

This device is commonly used in power supply applications such as AC/DC converters, DC/DC converters, and offline power supplies.

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