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UCC28C40DGK from TI/UNITRODE,Texas Instruments

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UCC28C40DGK

Manufacturer: TI/UNITRODE

BiCMOS Low-Power Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UCC28C40DGK TI/UNITRODE 74 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC28C40DGK is a high-performance current mode PWM controller manufactured by Texas Instruments (TI)/Unitrode. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)/Unitrode  
- **Package:** VSSOP-8 (DGK)  
- **Topology:** Current Mode PWM Controller  
- **Operating Frequency:** Up to 1MHz  
- **Input Voltage Range:** 8.4V to 18V (VDD)  
- **Output Current (Source/Sink):** 1A (Peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5MHz (Typical)  
- **Start-Up Current:** 0.5mA (Typical)  
- **Operating Temperature Range:** -40°C to +125°C  

### **Descriptions:**  
- The UCC28C40DGK is a high-speed PWM controller optimized for offline and DC-DC power supplies.  
- It features a high-frequency operation capability (up to 1MHz) and includes a precision reference, error amplifier, and current sensing comparator.  
- The device supports both voltage and current mode control, making it suitable for various power supply designs.  

### **Features:**  
- **Current Mode Control:** Enhances loop response and simplifies compensation.  
- **Programmable Oscillator Frequency:** Adjustable via external timing components.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within the specified voltage range.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs or IGBTs.  
- **Low Start-Up and Operating Current:** Improves efficiency in standby modes.  
- **Wide Temperature Range:** Suitable for industrial and automotive applications.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Partnumber Manufacturer Quantity Availability
UCC28C40DGK TI 52 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC28C40DGK is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** UCC28C40DGK  
- **Package:** VSSOP-8 (DGK)  
- **Topology:** Current-Mode PWM Controller  
- **Input Voltage Range:** 8.5V to 21V  
- **Operating Frequency:** Up to 1MHz  
- **Output Duty Cycle:** Up to 100%  
- **Output Current (Source/Sink):** 1A (Peak)  
- **UVLO (Undervoltage Lockout):** Adjustable  
- **Operating Temperature Range:** -40°C to +125°C  

### **Descriptions:**
The UCC28C40DGK is a versatile PWM controller designed for high-frequency switching power supplies. It features current-mode control for improved loop response and includes protections such as undervoltage lockout (UVLO), cycle-by-cycle current limiting, and soft-start capability.  

### **Features:**
- **Current-Mode Control:** Provides inherent line feedforward and simplified loop compensation.  
- **Adjustable Switching Frequency:** Up to 1MHz operation.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Cycle-by-Cycle Current Limiting:** Enhances system reliability.  
- **Low Startup Current:** Typically 150µA.  
- **Wide Operating Voltage Range:** 8.5V to 21V.  
- **High-Current Totem-Pole Output:** 1A peak drive capability.  
- **Thermal Shutdown Protection:** Prevents overheating.  

This information is based solely on the manufacturer's datasheet and technical documentation.

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