LM4040C41ILPR Integrated Circuits (ICs)

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Introduction

The LM4040C41ILPR is a precision shunt voltage reference device. It is a precision voltage reference source manufactured by Texas Instruments, which derives its stability, accuracy, and low voltage drift from laser-trimmed thin-film resistors. This device can provide either a regulated output voltage of 4.096V or 4.194V as well as 1250ppm/K temperature coefficient for enhanced accuracy and improved line/load regulation. In addition, the output is adjustable from 1.2V to 6.9V.

Application Field

The LM4040C41ILPR can be used for a wide range of applications including computer peripherals, power management, and test & measurement. In particular, it is suitable for precision voltage regulation, precision monitor point regulation, and power supply reference in industrial, telecommunications, networking, defense, and aerospace applications. Its adjustable output voltage and high accuracy are especially well suited for use in critical systems where precise operation is required.

Working Principle

The LM4040C41ILPR device operates on the simple principle of voltage divider. It consists of a series of high precision resistors connected between the input voltage and the output voltage. When an input voltage is applied to the reference device, the output appears at the junction of the series of the resistors. The output voltage is determined by the ratio of the resistors. The precision of the output voltage is maintained by the precision laser-trimmed thin-film resistors.

The LM4040C41ILPR device also includes an advanced reset loop that prevents the output voltage from overshooting during rapid input voltage transitions. This reset loop ensures that the device is not subject to any additional stresses due to extended overshoots. Furthermore, the LM4040C41ILPR offers a low temperature coefficient of 1250ppm/K, assuring precision output voltage regulation.

Conclusion

The LM4040C41ILPR is a precision shunt voltage reference device ideal for use in industrial, telecommunications, networking, defense, and aerospace applications. It features a highly accurate adjustable output voltage range from 1.2V to 6.9V, with a low temperature coefficient of 1250ppm/K for enhanced accuracy and improved line/load regulation. The device is rounded out by its advanced reset loop, preventing the output voltage from overshooting on rapid input voltage transitions.

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