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UCC3802 from TI,Texas Instruments

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UCC3802

Manufacturer: TI

Low-Power BiCMOS Current-Mode PWM

Partnumber Manufacturer Quantity Availability
UCC3802 TI 1750 In Stock

Description and Introduction

Low-Power BiCMOS Current-Mode PWM The UCC3802 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 10V to 30V  
- **Operating Frequency Range:** Up to 1MHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Start-Up Current:** 0.5mA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** 8-Pin SOIC, PDIP  

### **Descriptions:**  
The UCC3802 is a current-mode pulse-width modulation (PWM) controller designed for high-frequency DC-DC power conversion applications. It provides precise control for switching power supplies with features like under-voltage lockout (UVLO), cycle-by-cycle current limiting, and soft-start capability.  

### **Features:**  
- **Current-Mode Control:** Ensures cycle-by-cycle current limiting for improved reliability.  
- **High-Speed Operation:** Supports switching frequencies up to 1MHz.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within the specified input voltage range.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Adjustable Oscillator Frequency:** Allows flexibility in design.  
- **Low Power Consumption:** Optimized for efficiency in standby modes.  
- **Internal Reference Voltage:** 5V (±1%) for stable regulation.  

This information is based on Texas Instruments' official documentation for the UCC3802.

Partnumber Manufacturer Quantity Availability
UCC3802 UC 25 In Stock

Description and Introduction

Low-Power BiCMOS Current-Mode PWM The UCC3802 is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments.  

### **Key Specifications:**  
- **Input Voltage Range:** 4.5V to 12V  
- **Operating Frequency:** Up to 1MHz  
- **Output Drive Current:** 1A (peak)  
- **Low Startup Current:** 50µA (typical)  
- **Low Operating Current:** 2mA (typical)  
- **Duty Cycle Range:** 0% to 100%  
- **Undervoltage Lockout (UVLO):** Adjustable  

### **Descriptions and Features:**  
- **Current-Mode Control:** Provides cycle-by-cycle current limiting for improved transient response.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Synchronization Capability:** Allows synchronization to an external clock.  
- **Error Amplifier:** Includes a high-gain bandwidth error amplifier for feedback loop stability.  
- **Low-Power Consumption:** Suitable for battery-powered applications.  
- **Protection Features:** Includes undervoltage lockout (UVLO) and overcurrent protection.  
- **Package Options:** Available in SOIC-8 and PDIP-8 packages.  

The UCC3802 is commonly used in DC-DC converters, power supplies, and battery chargers.

Partnumber Manufacturer Quantity Availability
UCC3802 UNITRODE 1675 In Stock

Description and Introduction

Low-Power BiCMOS Current-Mode PWM The UCC3802 is a high-performance current-mode PWM controller manufactured by UNITRODE. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Input Voltage Range:** 8.5V to 35V  
- **Operating Frequency:** Up to 1MHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Start-Up Current:** 150µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** SOIC-8, PDIP-8  

### **Descriptions:**  
The UCC3802 is a low-power, current-mode PWM controller designed for high-efficiency DC-DC converters. It features a high-speed oscillator, precision reference, and robust protection circuits, making it suitable for offline and isolated power supplies.  

### **Features:**  
- **Current-Mode Control:** Enhances loop response and simplifies compensation.  
- **Low Start-Up Current:** Enables efficient operation in low-power applications.  
- **Programmable Oscillator:** Allows flexible frequency setting via external components.  
- **Under-Voltage Lockout (UVLO):** Ensures reliable operation within the input voltage range.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Error Amplifier:** Provides precise voltage regulation.  

This information is sourced from UNITRODE's official documentation. No additional guidance or suggestions are included.

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