TEA1751T/N1,518

  PMIC - AC DC Converters, Offline Switchers - TEA1751T/N1,518 Application Field and Working Principle

The TEA1751T/N1,518 Integrated Circuit (IC) is a member of the Power Management Integrated Circuits (PMIC) family. It is a voltage regulator IC employed for transformers, AC/DC converters, and offline switchers. It is designed for a supply voltage range between 4.5V to 22V, so it can be utilized for both low voltage as well as high voltage applications. It is a highly reliable IC which utilizes an innovative voltage regulator circuit topology designed for a longer life and improved system availability.

Features

• Wide input voltage operating range from 4.5V to 22V
• Output short circuit current limit
• Precision internal voltage reference
• Adjustable output voltage with external resistor
• Over-voltage protection
• Over-temperature protection
• Automatic shutdown when output voltage is out of control

Applications

• Transformers
• AC/DC converters
• Offline switchers
• Power supplies
• Lighting systems
• Automotive applications

Operation Principle

The TEA1751T/N1,518 is a highly reliable integrated regulator IC with a wide-input voltage range. It features an integrated reference voltage generator and an error amp circuit to provide output regulation of the resulting voltage. The error amp circuit takes in the feedback voltage from the output and compares it to the reference voltage from the reference generator. The difference between the two voltages is then used to control the output voltage.

The feedback voltage is filtered and stabilized for accurate output voltage regulation. The integrated feedback safety mechanism ensures the safe operation of the device. It keeps the output voltage within a predetermined range and automatically shuts down the device if the output voltage is out of control.

The output voltage can be adjusted by changing the setting of the external resistor. Thus, the TEA1751T/N1,518 can be sat for any output voltage within the operating range.

Conclusion

The TEA1751T/N1,518 IC offers great flexibility, accuracy and reliability for various applications. It is suitable for use in transformers, AC/DC converters, and offline switchers. The high input voltage range and adjustable output voltage make it an ideal choice for various applications.