LM385PWE4-2-5

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The LM385PWE4-2-5 is a precision voltage reference designed for low voltage and high temperature applications, providing a stable and accurate reference. It is an advanced power management integrated circuit (PMIC) developed by Texas Instruments (TI). The LM385PWE4-2-5 is in TI’s voltage reference family, capable of providing highly-accurate voltage references from 1.182 V to 3.434 V. It is designed to operate over the temperature range of -55 to +125 degree Celsius, making it ideal for use in automotive, industrial, and general purpose reference applications.

This PMIC features a wide operating range of 1.2V to 5.8V, making it suitable for a variety of applications. It offers excellent accuracy and stability over a wide temperature range with a temperature coefficient of ±5 ppm/°C. This device is highly reliable and offers superior thermal performance while consuming minimal power. It is also well suited for applications with limited board space as it is offered in a very small 8-pin package.

The LM385PWE4-2-5 has a built-in temperature-compensated reference pin with a variety of options for output reference voltages. The device offers excellent load regulation characteristics, enabling the reference voltage to remain constant with changing load currents. It also provides a wide range of output voltage options to provide the user with flexibility when designing their application.

The LM385PWE4-2-5\'s primary application is the generation of highly accurate reference voltages for high-precision applications such as digital-to-analog converters, power supplies, and power amplifiers. It is also suitable for use in controlling and monitoring systems such as computer motherboards, microprocessors, and instrumentation systems. Its advanced design and temperature operating range make it a suitable choice for automotive and aerospace applications.

The main working principle of the LM385PWE4-2-5 is that it uses a bandgap voltage reference of ±0.3V with a temperature-compensating network to produce an accurate and stable voltage reference. This voltage is then supplied to the output pin and internally regulated to provide the required voltage level. The device is able to maintain a high level of stability and accuracy, even under varying temperatures and load conditions.

In conclusion, the LM385PWE4-2-5 is a reliable and versatile PMIC from Texas Instruments. It is designed to provide highly-accurate voltage references for applications where size and temperature are of paramount importance. With its advanced circuitry and excellent thermal performance, it is ideal for use in a wide range of applications including digital to analog converters, power supplies, automotive, and aerospace. It can be used in low voltage, high temperature applications due to its wide operating range. It offers excellent load regulation and high accuracy over a wide temperature range with an excellent temperature coefficient controlled by its internal bandgap reference.

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