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TL494CDB from TI,Texas Instruments

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TL494CDB

Manufacturer: TI

PULSE-WIDTH-MODULATION CONTROL CIRCUITS

Partnumber Manufacturer Quantity Availability
TL494CDB TI 359 In Stock

Description and Introduction

PULSE-WIDTH-MODULATION CONTROL CIRCUITS The TL494CDB is a pulse-width-modulation (PWM) control circuit manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Package:** SOIC-16  
- **Type:** PWM Controller IC  
- **Topology:** Buck, Boost, Flyback, Forward  
- **Output Type:** Dual (Push-Pull or Single-Ended)  
- **Frequency Range:** Up to 300 kHz  
- **Supply Voltage (VCC):** 7V to 40V  
- **Output Current (Sink/Source):** 200mA (per output)  
- **Duty Cycle Range:** 0% to 100% (adjustable)  
- **Error Amplifier Bandwidth:** 3 MHz (typical)  
- **Operating Temperature Range:** -40°C to 85°C  

### **Descriptions:**  
The TL494CDB 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 control circuitry. It is widely used in DC-DC converters, inverters, and SMPS (Switched-Mode Power Supplies).  

### **Features:**  
- **Complete PWM Control Circuitry**  
- **Adjustable Dead-Time Control**  
- **Internal Oscillator with Synchronization Capability**  
- **On-Chip Error Amplifiers for Feedback Control**  
- **Output Control for Push-Pull or Single-Ended Operation**  
- **Undervoltage Lockout (UVLO) Protection**  
- **Soft-Start Capability**  
- **Thermal Shutdown Protection**  

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

Application Scenarios & Design Considerations

PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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