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TL3843BDR from TI,Texas Instruments

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TL3843BDR

Manufacturer: TI

High-Performance Current-Mode PWM Controller 14-SOIC 0 to 70

Partnumber Manufacturer Quantity Availability
TL3843BDR TI 87 In Stock

Description and Introduction

High-Performance Current-Mode PWM Controller 14-SOIC 0 to 70 The TL3843BDR is a current-mode PWM controller manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VCC):** 8.5V to 30V (operating), 7.6V (UVLO on), 7.9V (UVLO off)  
- **Output Frequency:** Up to 500kHz (adjustable with external components)  
- **Output Drive Current:** ±200mA (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Gain Bandwidth:** 1MHz (typical)  
- **Reference Voltage:** 5V (±1%)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The TL3843BDR is designed for DC-DC converter applications, providing precise regulation with current-mode control. It features an integrated oscillator, error amplifier, and high-current totem-pole output for driving power MOSFETs.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Adjustable Frequency:** Set via external resistor and capacitor.  
- **Undervoltage Lockout (UVLO):** Ensures proper startup and shutdown.  
- **Pulse-by-Pulse Current Limiting:** Enhances protection.  
- **Soft-Start Capability:** Reduces inrush current.  
- **Low Startup Current:** Typically 1mA.  
- **Totem-Pole Output:** Optimized for driving MOSFETs.  

This information is sourced from the official Texas Instruments datasheet for the TL3843BDR.

Application Scenarios & Design Considerations

High-Performance Current-Mode PWM Controller 14-SOIC 0 to 70

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