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TL594CPW from TI,Texas Instruments

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TL594CPW

Manufacturer: TI

Pulse-Width-Modulation (PWM) Control Circuit

Partnumber Manufacturer Quantity Availability
TL594CPW TI 138 In Stock

Description and Introduction

Pulse-Width-Modulation (PWM) Control Circuit The TL594CPW is a pulse-width modulation (PWM) control circuit manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Supply Voltage (VCC):** 7V to 40V  
- **Output Current (Sink/Source):** 200mA (per output)  
- **Oscillator Frequency Range:** 1kHz to 300kHz  
- **Duty Cycle Adjustable Range:** 0% to 100%  
- **Error Amplifier Input Voltage Range:** -0.3V to VCC - 2V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** TSSOP-16  

### **Descriptions:**  
- The TL594CPW is a fixed-frequency PWM controller designed for power supply regulation.  
- It includes an on-chip oscillator, error amplifiers, a dead-time control comparator, and a flip-flop for PWM generation.  
- The device is commonly used in DC-DC converters, inverters, and switch-mode power supplies (SMPS).  

### **Features:**  
- **Complete PWM Control Circuitry**  
- **Two Error Amplifiers** for feedback loop control  
- **Adjustable Dead-Time Control** for output pulse-width management  
- **On-Chip Oscillator** with frequency programmability via external resistor and capacitor  
- **Push-Pull or Single-Ended Output Configuration**  
- **Undervoltage Lockout (UVLO)** for protection  
- **Internal Reference Voltage (5V ±1%)**  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to TI's official documentation.

Application Scenarios & Design Considerations

Pulse-Width-Modulation (PWM) Control Circuit

Alternative Part Number

  • SG3525AN --: Industry-standard PWM controller with similar voltage-mode architecture and totem-pole outputs, widely used as a direct functional substitute for the TL594 in switching power supply designs.
  • UC3846N --: Current-mode PWM controller offering comparable control-loop functionality and drive capability, suitable for replacing the TL594 in many power conversion applications.
  • MC34063AP --: Versatile DC-DC switching regulator controller that can implement similar PWM regulation functions, commonly used as a lower-cost alternative in non-critical designs.

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