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UC2846J from U (unitrode)

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UC2846J

Manufacturer: U (unitrode)

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2846J U (unitrode) 65 In Stock

Description and Introduction

Current Mode PWM Controller The UC2846J is a high-performance current-mode PWM controller manufactured by Unitrode (now part of Texas Instruments). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** Up to 40V  
- **Operating Frequency:** Up to 500 kHz  
- **Output Current (Source/Sink):** 200 mA (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage (Vref):** 5.1V (±1%)  
- **Error Amplifier Bandwidth:** 1 MHz  
- **Package:** 16-pin DIP (Dual In-line Package)  

### **Descriptions:**  
- The UC2846J is a fixed-frequency PWM controller designed for high-performance power supply applications.  
- It operates in current-mode control, providing improved loop response and simplified feedback compensation.  
- Includes features for push-pull, half-bridge, and full-bridge topologies.  

### **Features:**  
- **Current-Mode Control:** Enhances transient response and simplifies loop compensation.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Synchronizable Oscillator:** Allows synchronization with external clock signals.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within specified voltage ranges.  
- **Dual Pulse-Width Modulation (PWM) Outputs:** Supports multiple power stage configurations.  
- **Error Amplifier with High Gain-Bandwidth:** Optimized for feedback loop stability.  
- **Current Limiting:** Protects against overcurrent conditions.  

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

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