ZR40401F50TA Integrated Circuits (ICs)

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	ZR404
Supplier Device Package:	SOT-23
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	60µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	105µVrms
Series:	--
Temperature Coefficient:	100ppm/°C
Tolerance:	±1%
Current - Output:	15mA
Voltage - Output (Min/Fixed):	5V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionPMIC - Voltage Reference is a power management integrated circuit (PMIC) designed to regulate the voltage of an electronic system. It is typically used in conjunction with an analog-to-digital converter (ADC), a diode, and a switching element such as a transistor. The ZR40401F50TA is one such PMIC which is widely used for its high accuracy and reliability.ApplicationThe ZR40401F50TA has a wide range of applications, such as in industrial control, automotive, communication, and consumer electronics. It is most commonly used in voltage-sensitive applications such as processor cores, memory, bus power, and other power rails. In addition, it can be used to generate a reference voltage, as well as in microcontrollers, low-voltage analog power supplies, and voltage regulators.Working PrincipleThe ZR40401F50TA voltage reference operates on a basic principle whereby it uses a known resistor and a carefully matched diode to generate a reference voltage which is proportional to the voltage over the resistor. When the voltage over the resistor changes, the reference voltage will remain constant. This feature makes it ideal for applications that require the use of an accurate reference voltage, such as MCUs and analog-to-digital converters.The ZR40401F50TA voltage reference consists of three parts: the reference resistor, the reference diode, and the switching element. The resistor is used to generate the reference voltage, which is proportional to the voltage over the resistor. The diode is used to ensure that the reference voltage is always proportional to the voltage across the resistor, regardless of the voltage over the resistor changing. The switching element is used to connect and disconnect the power supply to the reference resistor and diode.The ZR40401F50TA voltage reference operates very much in a similar way to a Zener diode, but with one key difference: instead of a Zener diode, the reference voltage is generated by a resistor and a diode which are carefully matched to each other. The ZR40401F50TA voltage reference has many advantages over a Zener diode, such as being able to provide an accurate voltage reference over a wide range of conditions, as well as being able to operate in both amplitude and temperature variations.The reference voltage generated by the ZR40401F50TA voltage reference is adjustable over a wide range. It can be adjusted by changing the voltage over the reference resistor, as well as by using the control pins of the device. This allows for high precision adjustments, which can be used to adjust the reference voltage over a wide range of conditions.The switching element of the ZR40401F50TA voltage reference allows for power cycling in order to save power and reduce noise on the power rail. Power cycling is achieved by connecting and disconnecting the power supply to the reference resistor and diode, allowing for power conservation. This feature is especially useful in applications that require precision low-noise power rail operation.ConclusionThe ZR40401F50TA is a popular PMIC in the Voltage Reference product line, and is widely used in many industrial applications where accuracy and reliability are paramount. It is designed to provide an accurate, adjustable reference voltage over a wide range of conditions, while being able to operate in both amplitude and temperature variations. Its power cycling feature allows for power saving, making it an ideal choice for applications in which low-noise voltage is critical.

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