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UC3845DTRG4 from TI,Texas Instruments

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UC3845DTRG4

Manufacturer: TI

Current-Mode PWM Controller 14-SOIC 0 to 70

Partnumber Manufacturer Quantity Availability
UC3845DTRG4 TI 2530 In Stock

Description and Introduction

Current-Mode PWM Controller 14-SOIC 0 to 70 The **UC3845DTRG4** is a high-performance current-mode PWM controller manufactured by **Texas Instruments (TI)**.  

### **Specifications:**  
- **Topology**: Current-mode PWM controller  
- **Input Voltage Range**: 7V to 30V (operating), up to 36V (absolute max)  
- **Output Frequency**: Up to 500 kHz  
- **Duty Cycle**: Adjustable, up to 50% (fixed)  
- **Output Drive Current**: ±1A (peak)  
- **Error Amplifier Bandwidth**: 1 MHz  
- **Start-up Current**: <1mA  
- **Undervoltage Lockout (UVLO)**: 8.4V (on), 7.6V (off)  
- **Operating Temperature Range**: -40°C to +85°C  
- **Package**: SOIC-8  

### **Descriptions & Features:**  
- Designed for **offline and DC-DC converter** applications.  
- **Current-mode control** for improved line and load regulation.  
- **Automatic feed-forward compensation** for simplified loop design.  
- **Pulse-by-pulse current limiting** for enhanced protection.  
- **Latching PWM** for cycle-by-cycle current limiting.  
- **Internal trimmed bandgap reference** (5V ±1%).  
- **Low start-up and operating current** for efficiency.  
- **Undervoltage lockout (UVLO)** ensures proper operation.  
- **SOIC-8 package** for compact PCB design.  

This device is commonly used in **switching power supplies, battery chargers, and flyback converters**.  

Would you like any additional technical details?

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