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UC2845ADTR from TI,Texas Instruments

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15.625ms

UC2845ADTR

Manufacturer: TI

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2845ADTR TI 424 In Stock

Description and Introduction

Current Mode PWM Controller The UC2845ADTR is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Key Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VCC):** 8.4V to 30V (operating), up to 35V (absolute max)  
- **Output Drive Current:** ±1A (peak)  
- **Switching Frequency:** Up to 500 kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage:** 5V (±1% accuracy)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8 (DTR suffix)  

### **Descriptions and Features:**  
- **Current-Mode Control:** Provides improved loop response and simplified compensation.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation with thresholds at 8.4V (on) and 7.6V (off).  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Pulse-by-Pulse Current Limiting:** Enhances system reliability.  
- **Error Amplifier:** Features high gain-bandwidth for precise regulation.  
- **Synchronization Capability:** Allows external clock synchronization.  
- **Low Startup Current:** Typically 0.5mA, reducing power consumption.  

The UC2845ADTR is widely used in power supply applications, including AC/DC converters, DC/DC converters, and offline power supplies.  

(Note: All details are based on TI's official datasheet.)

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