LT1634BIS8-2.5#PBF

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Power management integrated circuit (PMIC) is one of the most important parts in a system, providing the power supply to maintain the system\'s stable working, and improve the system\'s performance. In PMIC, Voltage Reference is an essential part since it helps to determine the regulated voltage. LT1634BIS8-2.5#PBF is a commercially available voltage reference from Linear Technology, with a very good accuracy of 1%, low temperature coefficient of 0.6ppm/C, and a fast responze time of 8µs. In this article, we will discuss the application field and the working principle of LT1634BIS8-2.5#PBF.

Application Field

Voltage reference is deployed in almost all kinds of components, and LT1634BIS8-2.5#PBF is no exception. This digital voltage reference is designed for supply sets, microcontrollers, data converters, amplifiers and other high accuracy, low noise applications. With its high accuracy and low temperature coefficient, it is particularly suitable for the components that need to maintain their voltage accuracy under the changing temperature. Other than that, it also has a plenty of advantages, such as a wide input voltage range of 5 to 15V, low dropout of 550mV at 8mA, and an internal voltage reference can be trimmed up to 2.5V. Therefore, it is widely used in many circuit designs.

1. Automotive Monitoring System

An automotive monitoring system consists of different kinds of components, and requires a stable and accurate power supply for smooth operation; this is where the LT1634BIS8-2.5#PBF comes in handy. This voltage reference can be used to ensure the accuracy of the power supply under extreme conditions, such as high temperature and vibration. With the built-in low temperature coefficient, it can maintain the accuracy of the power supply even if the temperature varies.

2. Battery Management System

The voltages of the battery need to be accurately monitored and monitored for safe operations, and the LT1634BIS8-2.5#PBF can be used for this. This voltage reference will provide a stable and accurate voltage to the battery management system, which helps to maintain the system\'s accuracy and reliability. Furthermore, this voltage reference has a wide input voltage range, from 5 to 15V. As such, it is suitable for any kinds of batteries and ensure their safety by providing the stable voltage.

3. Portable Medical Devices

To ensure the accuracy of the data collected from portable medical devices, an accurate and stable voltage reference is critical. And LT1634BIS8-2.5#PBF is the right choice for this kind of applications since it has an accuracy of 1%, a low temperature coefficient of 0.6ppm/C, and a fast response time of 8µs. With its wide input voltage range and high accuracy, it can be used in any kinds of portable medical devices to ensure their accuracy.

Working Principle

LT1634BIS8-2.5#PBF works by using an internal bandgap reference and an adjustable voltage reference. The adjustable voltage reference uses a voltage divider and a PMOS transistor to set the output voltage. The PMOS transistor will be turned on/off depending on the voltage divider setting. The bandgap reference is used to generate a reference voltage and this reference voltage will be compared to the output voltage. The bandgap reference acts as an error amplifier, which will turn on/off the PMOS transistor to maintain the output voltage constant.

Furthermore, LT1634BIS8-2.5#PBF also features power saving design, where it will enter suspend mode when the output voltage is not in use. This will reduce the overall power consumption and keep the device running on a low power budget. Additionally, this device also supports soft-start and over-temperature protection, which will help to avoid any accidental or unexpected over-current or over-temperature during operation.

Conclusion

LT1634BIS8-2.5#PBF is a commercially available voltage reference from Linear Technology, designed for supply sets, microcontrollers, data converters, amplifiers and other high accuracy and low noise applications. It has a high accuracy of 1%, a low temperature coefficient of 0.6ppm/C, and a wide input voltage range of 5 to 15V. With its wide range of features, it is the ideal choice for automotive monitoring system, battery management system, and portable medical devices. Furthermore, this voltage reference is also power saving, supporting suspend mode and over-temperature protection. Therefore, LT1634BIS8-2.5#PBF is an ideal choice for any circuits that require a highly accurate and stable voltage reference.

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