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UC3846DWTRG4 from TI,Texas Instruments

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UC3846DWTRG4

Manufacturer: TI

Current Mode PWM Controller 16-SOIC 0 to 70

Partnumber Manufacturer Quantity Availability
UC3846DWTRG4 TI 2530 In Stock

Description and Introduction

Current Mode PWM Controller 16-SOIC 0 to 70 The UC3846DWTRG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** Current-Mode PWM Controller  
- **Package:** SOIC-16 (DW)  
- **Operating Temperature Range:** -40°C to 85°C  
- **Supply Voltage (VCC):** Up to 40V  
- **Output Current (Source/Sink):** 500mA (Peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 1MHz  
- **Under-Voltage Lockout (UVLO):** Adjustable  
- **Current Sense Input:** Differential  
- **Soft-Start Capability:** Yes  

### **Descriptions:**  
The UC3846DWTRG4 is designed for high-efficiency power supply applications, providing precise control over pulse-width modulation (PWM) in current-mode topologies. It includes features like cycle-by-cycle current limiting, soft-start, and adjustable dead-time control, making it suitable for flyback, forward, and push-pull converters.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Programmable Oscillator:** Allows flexible frequency setting.  
- **Dual Alternating Outputs:** Supports push-pull and half-bridge configurations.  
- **Precision Reference:** 5.1V ±1% for stable operation.  
- **Synchronization Capability:** Allows multiple ICs to sync for noise reduction.  
- **Shutdown Function:** Immediate shutdown via dedicated pin.  
- **Low Startup Current:** Reduces power consumption during startup.  

This IC is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and industrial power systems.

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