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TL494MJ from HAR

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TL494MJ

Manufacturer: HAR

Pulse-Width-Modulation (Pwm) Control Circuit

Partnumber Manufacturer Quantity Availability
TL494MJ HAR 3500 In Stock

Description and Introduction

Pulse-Width-Modulation (Pwm) Control Circuit The TL494MJ is a pulse-width modulation (PWM) control circuit manufactured by Harris Semiconductor (HAR). Below are the factual details about its specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** Harris Semiconductor (HAR)  
- **Type:** PWM Controller IC  
- **Package:** 16-Pin DIP (Dual In-Line Package)  
- **Operating Voltage Range:** 7V to 40V  
- **Output Current (Sink/Source):** 200mA (per output)  
- **Frequency Range:** Adjustable up to 300kHz  
- **Duty Cycle Range:** Adjustable from 0% to 100%  
- **Oscillator Frequency:** Programmable via external resistor and capacitor  
- **Error Amplifiers:** Two built-in op-amps for feedback control  
- **Output Configuration:** Push-pull or single-ended output options  
- **Thermal Shutdown:** No (requires external protection)  

### **Descriptions:**  
The TL494MJ is a fixed-frequency PWM controller IC designed for power supply control applications. It provides adjustable dead-time control, error amplifiers for feedback loops, and an on-chip oscillator for frequency programming. It is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and motor control circuits.  

### **Features:**  
- Adjustable dead-time control  
- Dual error amplifiers for feedback regulation  
- On-chip oscillator with sync capability  
- Push-pull or single-ended output modes  
- Undervoltage lockout (UVLO) protection  
- Soft-start capability (via external capacitor)  
- Compatible with both voltage and current-mode control  

This information is sourced from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Pulse-Width-Modulation (Pwm) Control Circuit

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