ZR40402R50STZ

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Power management integrated circuits (PMIC) are electronic devices that are used to control and manage the power of a system or device. These integrated circuits provide an interface between the power supply and the system or device they are intended to serve. Voltage references are an important type of power management integrated circuit, and their job is to maintain a given voltage level within a certain range. The ZR40402R50STZ is a voltage reference which comes in two variations: fixed and adjustable. In this article, we will look at the ZR40402R50STZ\'s application field and working principle.

Application Field

The ZR40402R50STZ, developed by Diodes Incorporated, is a high-accuracy, low-drift, two-terminal voltage reference with wide operation current range capabilities. It operates reliably over a wide input voltage range and can be operated over temperatures of -40 to +85 °C, making it suitable for both commercial and industrial applications. The ZR40402R50STZ provides a very stable reference voltage of 0.8V, with an output accuracy of 5 mV and voltage drift of 3 µV / °C.Its main applications include portable applications, such as hand-held devices, and engineering applications, such as instrumentation, data acquisition, and telecommunications. It is also widely used in automotive, industrial and consumer applications that require accurate power management.

Working Principle

The ZR40402R50STZ operates by regulating the output voltage to a certain level, even if the load or the input voltage fluctuates. This regulation is made possible by the use of a bandgap reference circuit.The bandgap reference circuit is a special type of circuit that is used to generate a reference voltage. It works by generating a difference between two voltages, one at a higher temperature (VH) and one at a lower temperature (VL). By combining these two voltages into one, a reference voltage is produced which is relatively unaffected by fluctuations in input or load.The ZR40402R50STZ also features a trimmed PIN diode, which means that it is able to maintain the output voltage even when loaded with high currents. This makes it ideal for applications which require large amounts of current.The ZR40402R50STZ also features a shutdown mode, allowing it to enter low power mode when not in use. This helps to reduce overall power consumption, making it suitable for battery-powered applications.

The ZR40402R50STZ is a reliable, accurate voltage reference which is suitable for a wide range of applications. Its ability to maintain its output voltage even in highly fluctuating loads makes it ideal for engineering and portable applications. It also boasts a low-power shutdown mode and a trimmed PIN diode for large current applications, making it a versatile and highly efficient power management integrated circuit.

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