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UC2853AD from TI/BB,Texas Instruments

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UC2853AD

Manufacturer: TI/BB

High Power Factor Preregulator 8-SOIC -40 to 105

Partnumber Manufacturer Quantity Availability
UC2853AD TI/BB 157 In Stock

Description and Introduction

High Power Factor Preregulator 8-SOIC -40 to 105 The UC2853AD is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI) and Burr-Brown (BB).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range:** Up to 30V  
- **Operating Frequency:** Adjustable up to 1MHz  
- **Output Drive Current:** ±1.5A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5MHz  
- **Soft-Start Capability:** Yes  
- **Undervoltage Lockout (UVLO):** Adjustable  
- **Package:** 16-pin SOIC (D)  

### **Descriptions:**  
The UC2853AD is designed for high-frequency switching power supply applications. It features precise current-mode control, enabling improved loop response and simplified compensation. The device includes an onboard error amplifier, oscillator, current sensing comparator, and high-current totem-pole output driver.  

### **Features:**  
- **Current-Mode Control:** Enhances transient response and simplifies loop compensation.  
- **Programmable Oscillator:** Allows frequency adjustment with external components.  
- **Soft-Start:** Reduces inrush current during startup.  
- **High-Current Output Drive:** Supports fast switching of power MOSFETs.  
- **UVLO Protection:** Ensures reliable operation under low-voltage conditions.  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  
- **Low Standby Current:** Improves efficiency in standby modes.  

This controller is commonly used in AC/DC converters, offline power supplies, and DC/DC converters.

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