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UC2845ADTRG4 from TI,Texas Instruments

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UC2845ADTRG4

Manufacturer: TI

Current Mode PWM Controller 14-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
UC2845ADTRG4 TI 2530 In Stock

Description and Introduction

Current Mode PWM Controller 14-SOIC -40 to 85 The **UC2845ADTRG4** is a high-performance current-mode PWM controller manufactured by **Texas Instruments (TI)**.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VCC):** 8V to 30V  
- **Operating Frequency:** Up to 500 kHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 1 MHz  
- **Soft-Start Capability:** Yes  
- **Undervoltage Lockout (UVLO):** 7.9V (on) / 7.5V (off)  
- **Package:** SOIC-8 (D)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The UC2845ADTRG4 is designed for **offline and DC-DC converter applications**, providing precise **current-mode control** with high efficiency. It integrates features like **cycle-by-cycle current limiting**, **soft-start**, and **undervoltage lockout** for robust power supply designs.  

### **Features:**  
- **Current-Mode Operation** for improved transient response  
- **Automatic Feed-Forward Compensation**  
- **Latching PWM** for cycle-by-cycle current limiting  
- **Internal Trimmed Bandgap Reference** (5V ±1%)  
- **High-Current Totem Pole Output** for driving power MOSFETs  
- **Low Startup and Operating Current**  
- **500 kHz Oscillator Frequency**  

This device is commonly used in **switching power supplies, battery chargers, and industrial power systems**.

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