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TL594 from TI,Texas Instruments

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TL594

Manufacturer: TI

PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT

Partnumber Manufacturer Quantity Availability
TL594 TI 150 In Stock

Description and Introduction

PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT The TL594 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  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Current (Sink/Source):** 200mA (per output)  
- **Frequency Range (Adjustable):** Up to 300kHz  
- **Duty Cycle Adjustable Range:** 0% to 100%  
- **Error Amplifier Gain Bandwidth:** 1MHz (typical)  
- **Internal Reference Voltage:** 5V ±1%  

### **Descriptions:**
- The TL594 is a fixed-frequency PWM controller designed for power supply regulation.  
- It includes an on-chip oscillator, dead-time control, error amplifiers, and output drivers.  
- Suitable for push-pull and single-ended applications.  
- Provides adjustable duty cycle control and frequency modulation.  

### **Features:**
- **Complete PWM Control Circuitry**  
- **On-Chip Error Amplifiers** (two independent op-amps)  
- **Adjustable Dead-Time Control** for output pulse management  
- **Internal 5V Reference** with ±1% accuracy  
- **Uncommitted Output Transistors** (200mA sink/source capability)  
- **Sync Capability** for multi-unit operation  
- **Undervoltage Lockout (UVLO)** for protection  

The TL594 is commonly used in DC-DC converters, power inverters, and SMPS (Switched-Mode Power Supplies).

Application Scenarios & Design Considerations

PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT

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