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UCC38C43DGK from TI,Texas Instruments

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UCC38C43DGK

Manufacturer: TI

BiCMOS Low-Power Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UCC38C43DGK TI 6 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC38C43DGK is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** UCC38C43DGK  
- **Package:** VSSOP-8 (DGK)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (VCC):** 10V to 20V (start-up), 8V to 12V (operating)  
- **Maximum Duty Cycle:** 100%  
- **Switching Frequency:** Up to 1MHz  
- **Output Current (Source/Sink):** 1A (peak)  
- **Current Sense Threshold:** 1V (typical)  
- **Propagation Delay:** 50ns (typical)  
- **Low Power Consumption:** 1.5mA (typical operating current)  

### **Descriptions:**
- The UCC38C43DGK is a BiCMOS current-mode PWM controller optimized for high-frequency DC-DC power conversion.  
- It provides precise duty cycle control with fast response to load and line variations.  
- Suitable for flyback, forward, and boost converter topologies.  

### **Features:**
- **Current-Mode Control:** Enhances loop stability and transient response.  
- **Programmable Oscillator:** Adjustable switching frequency up to 1MHz.  
- **Under-Voltage Lockout (UVLO):** Ensures proper start-up and shutdown.  
- **Soft-Start Capability:** Reduces inrush current during start-up.  
- **Synchronization Input:** Allows external clock synchronization.  
- **Error Amplifier:** Provides high gain-bandwidth for tight regulation.  
- **Low Startup Current:** Minimizes power consumption during standby.  

This information is sourced from TI's official documentation. For detailed application notes, refer to the manufacturer's datasheet.

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