What is TL494CN Chip?

 The TL494CN is a versatile dual PWM (Pulse Width Modulation) control IC developed by Texas Instruments. It is widely used in power supply applications, including DC-DC converters and switching power supplies, due to its ability to provide precise control of output voltage and current.  

Key Features:

  1. Dual Control Loops: The TL494CN features two independent control loops, allowing for both voltage and current regulation in power supply designs, making it ideal for applications requiring high reliability and stability.

  2. Adjustable Frequency: The IC operates at a frequency that can be adjusted from 100 Hz to 100 kHz, providing flexibility in designing power supplies tailored to specific requirements.

  3. Error Amplifiers: It includes two error amplifiers that can be configured for feedback control, helping maintain stable output under varying load conditions.

  4. Integrated Features: The TL494CN integrates features such as dead-time control, soft start, and pulse-by-pulse current limiting, which enhance the performance and safety of power supply designs.

  5. Wide Operating Voltage Range: The IC can operate from a supply voltage of 7V to 40V, making it suitable for a broad range of applications.

Applications:

  • Switching Power Supplies: Commonly used in isolated and non-isolated power supply designs for efficient voltage conversion.
  • DC-DC Converters: Suitable for step-up, step-down, and flyback converters in various electronic devices.
  • Battery Chargers: Used in designs for charging batteries with precise voltage and current control.
  • Consumer Electronics: Found in power supplies for a wide range of consumer devices, including computers and home appliances.

Technical Specifications:

  • Supply Voltage Range: 7V to 40V
  • Output Current: Up to 1A (for driving external transistors)
  • Operating Temperature Range: -40°C to +125°C
  • Package: Available in DIP and surface mount packages.

The TL494CN is highly regarded for its reliability and flexibility in power supply design, making it a go-to choice for engineers seeking to implement efficient and stable PWM control in various applications. Its comprehensive feature set allows for robust power management solutions across different industries. MobikeChip 

Search List Page： TL494CN Parts Search Page | Datasheet PDF | Price | Quantity-MobikeChip 

 

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