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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.

Application Scenarios & Design Considerations

BiCMOS Low-Power Current Mode PWM Controller
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.

Application Scenarios & Design Considerations

BiCMOS Low-Power Current Mode PWM Controller

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