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UCC38C44D from TI,Texas Instruments

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UCC38C44D

Manufacturer: TI

BiCMOS Low-Power Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UCC38C44D TI 25 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC38C44D is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI). Below are the specifications, descriptions, and features based on the factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** Current-Mode PWM Controller  
- **Package:** SOIC-8  
- **Operating Voltage Range:** 8V to 35V  
- **Switching Frequency:** Up to 1MHz  
- **Output Current (Source/Sink):** 1A (Peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The UCC38C44D is a high-speed, low-power current-mode PWM controller designed for DC-DC converter applications. It features precise duty cycle control, cycle-by-cycle current limiting, and under-voltage lockout (UVLO) protection. The device is optimized for high-frequency switching power supplies and offers improved transient response and stability.  

### **Features:**  
- **Current-Mode Control:** Enhances loop response and simplifies compensation.  
- **Adjustable Switching Frequency:** Up to 1MHz operation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within voltage range.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Cycle-by-Cycle Current Limiting:** Protects against overload conditions.  
- **Low Startup Current:** Typically 150µA for efficient operation.  
- **High Output Drive:** 1A peak output current for driving power MOSFETs.  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  

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

Partnumber Manufacturer Quantity Availability
UCC38C44D TI/UNITRODE 47 In Stock

Description and Introduction

BiCMOS Low-Power Current Mode PWM Controller The UCC38C44D is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI)/Unitrode. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)/Unitrode  
- **Type:** Current-Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Frequency Range:** Up to 1MHz  
- **Operating Voltage Range:** 8.4V to 30V  
- **Output Current (Source/Sink):** 1A (Peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Start-Up Current:** 0.5mA (Typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UCC38C44D is designed for high-frequency switching power supplies, providing precise control in current-mode applications. It features low start-up and operating currents, making it suitable for offline and DC-DC converters.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Programmable Oscillator:** Adjustable frequency up to 1MHz.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage range.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Low Power Consumption:** Optimized for efficiency.  
- **Leading Edge Blanking:** Improves noise immunity in current sensing.  

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

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