TXB0104D

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Logic translators and level shifters are two important parts of electrical engineering. These two help prevent clashing between circuits due to differences in voltage and current levels. One such device is the TXB0104D, which is a bidirectional, voltage-level translator for the I²C-bus and other standard and proprietary bus applications.

The TXB0104D operates on voltages ranging from 1.2V to 5.5V, and features both a low-power shutdown and 9 mA of output-current capability. It\'s ESL performance and wide supply-voltage range make it a perfect choice for bidirectional level-shifting applications.

Application Field and Features

The TXB0104D is most often used in industrial, commercial, and automotive applications, particularly in automotive safety systems and industrial sensors. It\'s suitable for both digital and analog signals, making it very versatile for a wide range of applications.

The device\'s features provide efficient communication in both directions, eliminating the need for additional logic signals. It supports both single- and dual-directional communication and can be used in both push-pull and open-drain configurations. Additionally, it features slew-rate control and glitch-free operation, making it more reliable and efficient than other level-shifting devices.

Working Principle

The TXB0104D is a bidirectional translating device, which means it can receive input signals from both sides. To do so, it uses two N-type MOSFET (metal-oxide-semiconductor field-effect transistor) transistors. These two transistors act as the two input terminals, and the two output terminals are connected to the source and drain of the two transistors. This allows for the input signals to be shifted to different voltages depending on the current state of the two transistors.

At the same time, the device has an internal regulator that is used to ensure that the output voltage is always within the operating limits. This allows the device to not only shift voltages but also maintain a steady output voltage. It also has a current-limiting circuit that prevents the device from overloading, providing reliable and safe operation.

When the input voltage is applied to the device, the output voltage is adjusted to match the input voltage. This means the device is able to level-shift the input signals to different output voltages, ensuring efficient communication between the two sides.

Conclusion

The TXB0104D is an effective bidirectional voltage-level translator for various applications. Its wide operating voltage range and slew-rate control make it suitable for a variety of industrial, commercial, and automotive applications. It also offers glitch-free operation, which makes it a reliable and efficient choice for level-shifting applications.

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