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TL3842D8 from TI,Texas Instruments

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TL3842D8

Manufacturer: TI

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
TL3842D8 TI 25 In Stock

Description and Introduction

Current-Mode PWM Controller The TL3842D8 is a PWM controller IC manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 8V to 30V (operating range)  
- **Output Frequency:** Adjustable up to 500 kHz  
- **Duty Cycle:** 0% to 100% (adjustable)  
- **Output Current (Peak):** 1A (source/sink)  
- **Reference Voltage:** 5V (±1% accuracy)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (D8)  

### **Descriptions:**  
The TL3842D8 is a high-performance fixed-frequency current-mode PWM controller. It is designed for DC-DC converter applications and provides precise regulation with features like under-voltage lockout (UVLO), cycle-by-cycle current limiting, and a trimmed oscillator for accurate frequency control.  

### **Features:**  
- Current-mode control for improved loop response  
- Under-voltage lockout (UVLO) with hysteresis  
- Trimmed oscillator discharge current for precise duty cycle control  
- High-current totem-pole output for driving power MOSFETs  
- Internal soft-start functionality  
- Latching PWM for cycle-by-cycle current limiting  
- Low startup current (<1mA)  

This IC is commonly used in power supply designs, including flyback, forward, and boost converters.

Application Scenarios & Design Considerations

Current-Mode PWM Controller

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