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TL2843DRG4 from TI,Texas Instruments

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TL2843DRG4

Manufacturer: TI

CURRENT-MODE PWM CONTROLLERS

Partnumber Manufacturer Quantity Availability
TL2843DRG4 TI 2500 In Stock

Description and Introduction

CURRENT-MODE PWM CONTROLLERS The TL2843DRG4 is a current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 8.5V to 30V  
- **Switching Frequency:** Up to 500 kHz  
- **Output Duty Cycle:** 0% to 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  
- **Output Current (Source/Sink):** 200 mA (peak)  
- **Reference Voltage:** 5V (±1%)  
- **UVLO (Undervoltage Lockout):** 8.4V (on), 7.6V (off)  

### **Descriptions:**  
The TL2843DRG4 is a high-performance PWM controller designed for DC-DC converter applications. It features current-mode control for improved loop response and line regulation. The device includes an integrated 5V reference, oscillator, error amplifier, and PWM comparator.  

### **Features:**  
- **Current-Mode Control:** Enhances transient response and simplifies loop compensation.  
- **Programmable Oscillator:** Allows frequency adjustment with external components.  
- **Error Amplifier:** Wide bandwidth for precise regulation.  
- **Soft-Start Capability:** Reduces inrush current at startup.  
- **Pulse-by-Pulse Current Limiting:** Protects against overloads.  
- **Low Startup Current:** Typically 0.5 mA.  
- **Totem-Pole Output:** Suitable for driving MOSFETs.  

For detailed application notes, refer to the official TI datasheet.

Application Scenarios & Design Considerations

CURRENT-MODE PWM CONTROLLERS

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