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TL494ID from TI,Texas Instruments

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TL494ID

Manufacturer: TI

Pulse-Width-Modulation (Pwm) Control Circuit

Partnumber Manufacturer Quantity Availability
TL494ID TI 27 In Stock

Description and Introduction

Pulse-Width-Modulation (Pwm) Control Circuit The TL494ID is a pulse-width modulation (PWM) control circuit manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Supply Voltage (VCC):** 7V to 40V  
- **Output Current (per transistor):** 200mA (sink/source)  
- **Frequency Range:** Up to 300kHz  
- **Duty Cycle Range:** Adjustable from 0% to 100%  
- **Oscillator Frequency Adjustment:** Via external RT and CT components  
- **Error Amplifiers:** Two built-in op-amps for feedback control  
- **Output Configuration:** Push-pull or single-ended operation  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-16  

### **Descriptions:**  
The TL494ID is a fixed-frequency PWM controller IC designed for power supply control applications. It includes an on-chip oscillator, error amplifiers, a dead-time control comparator, and output drivers. It is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and motor control circuits.  

### **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 configurations  

This IC is widely used in industrial, automotive, and consumer electronics applications requiring precise PWM control.

Application Scenarios & Design Considerations

Pulse-Width-Modulation (Pwm) Control Circuit

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