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TL3843P from TI,Texas Instruments

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TL3843P

Manufacturer: TI

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
TL3843P TI 2000 In Stock

Description and Introduction

Current-Mode PWM Controller The TL3843P is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 7V to 30V (start-up), 7.9V to 30V (operating)  
- **Reference Voltage:** 5V ±1%  
- **Switching Frequency:** Up to 500kHz (adjustable with external components)  
- **Output Duty Cycle:** 0% to 100% (adjustable)  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package Type:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Current Sensing:** Peak Current Mode Control  
- **Under-Voltage Lockout (UVLO):** 7V (on), 7.9V (off)  

### **Descriptions:**  
The TL3843P is a fixed-frequency pulse-width modulation (PWM) controller designed for DC-DC converter and power supply applications. It features current-mode control for improved loop response and simplified feedback compensation. The device includes an internal trimmed oscillator, a precision reference voltage, and high-gain error amplifier.  

### **Features:**  
- **Current-Mode Control:** Enhances line and load regulation.  
- **Trimmed Oscillator:** Provides precise frequency control.  
- **High-Current Totem Pole Output:** Suitable for driving power MOSFETs.  
- **Low Start-Up Current:** Typically 0.5mA.  
- **Pulse-by-Pulse Current Limiting:** Protects against overloads.  
- **Automatic Feed-Forward Compensation:** Improves transient response.  
- **Internal Soft-Start:** Reduces inrush current.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Current-Mode PWM Controller

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