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TL494CJ from TMS

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TL494CJ

Manufacturer: TMS

Pulse-Width-Modulation (Pwm) Control Circuit

Partnumber Manufacturer Quantity Availability
TL494CJ TMS 20 In Stock

Description and Introduction

Pulse-Width-Modulation (Pwm) Control Circuit The TL494CJ is a pulse-width modulation (PWM) controller IC manufactured by Texas Instruments (TMS).  

### **Specifications:**  
- **Supply Voltage (VCC):** 7V to 40V  
- **Output Current (per Transistor):** 200mA (sink/source)  
- **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 error amplifiers for feedback control  
- **Output Configuration:** Push-pull or single-ended output options  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin PDIP (Plastic Dual In-line Package)  

### **Descriptions:**  
The TL494CJ is a fixed-frequency PWM controller designed for power supply and DC-DC converter applications. It includes an on-chip oscillator, dead-time control, and error amplifiers for precise regulation.  

### **Features:**  
- Adjustable dead-time control  
- Internal reference voltage (5V ±1%)  
- Undervoltage lockout (UVLO)  
- Soft-start capability  
- Compatible with both voltage-mode and current-mode control  
- Dual alternating outputs for push-pull or single-ended configurations  

This IC is commonly used in switch-mode power supplies (SMPS), inverters, and motor control circuits.

Application Scenarios & Design Considerations

Pulse-Width-Modulation (Pwm) Control Circuit

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