LM4040D41ILPR Integrated Circuits (ICs)

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The LM4040D41ILPR is a precision micropower voltage reference from Texas Instruments that offers a low-powered, low-cost, and reliable solution for use in a range of applications. It belongs to the PMIC - Voltage Reference family of products, where it offers up to 0.1-percent accuracy over temperature, a wide input voltage range, low noise and low power consumption. This makes it ideal for a variety of applications in the engineering and industrial automation sectors, such as motor control, system monitoring, power management, and communication systems. In this article, we will discuss the LM4040D41ILPR’s application field, working principle, and various features.

The LM4040D41ILPR is designed to provide a precise, stable and low-noise, low-power voltage reference for precision voltage, current and temperature measurement. The device can operate from +2.7V to +18V input and may be supplied from either a 3V, 5V or a higher voltage. This allows flexibility for the customer’s application requirements. The device has an output voltage of 4.000V, 4.200V and 4.400V, with an accuracy of 0.1% at temperatures ranging from -40°C to +125°C. The low power consumption of the device, which is typically 5µA at a +5V supply, allows longer equipment runtime or reduced system size in energy critical systems.

The LM4040D41ILPR also offers tailored voltage accuracy and temperature range to meet the customer’s needs. It is designed with low part-to-part variation, and provides a tight distribution of reference output voltages relative to temperature. This makes it a reliable solution for accurate measurement of voltage, current, and temperature in engineering, industrial automation, motor control, system monitoring, power management and communication systems.

The LM4040D41ILPR operates on an adjustable, low-dropout, bipolar regulated power supply that is capable of accurately regulating the output voltage. It utilizes a precision voltage divider to reference the voltage and regulate the output voltage. This output voltage can be used for sensing and measurement, or as a reference voltage for converters, amplifiers and other devices that require precise voltage regulation.

The LM4040D41ILPR also features low noise, allowing for accurate measurements. It offers up to 75dB high-frequency noise rejection and low output noise, both of which contribute to improved performance for measurement and control applications. The device is packaged in a compact SOT-323 package, making it suitable for a wide range of applications where space is limited.

In addition, the LM4040D41ILPR provides a variety of protection features that offer reliability and protection to the user, such as overvoltage protection and short circuit protection. The device also features an open collector output, allowing it to be used as a logic level interface, and offers current sourcing, current limiting, and a precision voltage trimming feature.

The LM4040D41ILPR is an excellent choice for applications requiring precise, low-power and low-noise voltage regulation. It is highly accurate and offers a wide temperature range, low part-to-part variation, and a wide input voltage range. Its protection features combine with its small package and low power consumption, making it a perfect solution for a variety of applications in engineering and industrial automation.

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