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UC3846DW

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC3846DW 65 In Stock

Description and Introduction

Current Mode PWM Controller The UC3846DW is a high-performance current-mode PWM controller manufactured by Texas Instruments.  

### **Specifications:**  
- **Input Voltage Range:** 8V to 40V  
- **Operating Frequency:** Up to 500kHz  
- **Output Current:** 200mA (source/sink)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 1MHz  
- **Soft-Start Capability:** Yes  
- **Under-Voltage Lockout (UVLO):** Yes  
- **Package:** SOIC-16 (DW)  

### **Descriptions:**  
The UC3846DW is a fixed-frequency pulse-width modulation (PWM) controller designed for DC-DC converter applications. It features current-mode control for improved loop response and includes built-in protections such as cycle-by-cycle current limiting and under-voltage lockout.  

### **Features:**  
- **Current-Mode Control:** Enhances transient response and simplifies loop compensation.  
- **Programmable Oscillator:** Allows external frequency setting via a single resistor and capacitor.  
- **Synchronization Capability:** Can be synchronized to an external clock.  
- **Error Amplifier:** High-gain bandwidth for precise regulation.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Dual Output Drivers:** Suitable for push-pull or half-bridge topologies.  
- **Low Startup Current:** Typically 1mA for efficient operation.  

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

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