LMV431BCZ/NOPB

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PMIC (Power Management Integrated Circuitry) is a type of integrated circuit designed to manage power in electronic systems. One such type of PMIC is the LMV431BCZ/NOPB voltage reference, which is designed to provide an accurate voltage reference in the presence of variable load and power supply conditions. The device contains four independent, buffered voltage reference inputs that can be driven with either a single-ended or differential input signal. The device also has an adaptive voltage scaling (AVS) feature, which allows the regulator to adjust the output voltage to compensate for environmental changes.

The LMV431BCZ/NOPB is a wide temperature range voltage reference that provides a temperature-stable, high-accuracy reference. It operates from a wide input range (3.3V and up to 22V) and can generate an output voltage that is accurate to within ±0.2%. The device is also entirely immune to ESD (electrostatic discharge) and has a low self-heating temperature coefficient.

The LMV431BCZ/NOPB can be used in a variety of applications where an accurate and stable voltage reference is required, including power supply and battery management, level shifting, threshold detection, and transducer signal conditioning. Additionally, the device can be used in a variety of industrial, medical, and automotive applications.

The working principle of the LMV431BCZ/NOPB is based on a four-terminal design. The device features two adjustable reference inputs and two adjustable output pins; one of the outputs is an active low output and the other a buffered high-impedance output. The device also has an integrated voltage scaling circuit that can be used to reduce the output voltage when the input voltage is too high, or increase the output voltage when the input voltage is too low.

The reference inputs can be driven with either a single-ended or differential input signal, and each provides up to 1mA of drive current. The output voltage is regulated by a bandgap voltage reference to ensure that the output voltage remains accurate over a wide range of conditions, including load current and input voltage. Additionally, the device contains a temperature compensation circuit that ensures stable output voltage over a wide temperature range. The output voltage can also be adjusted using the integrated, on-chip digital control inputs.

In conclusion, the LMV431BCZ/NOPB voltage reference is an ideal choice for applications that require an accurate and stable voltage reference in the presence of variable input and load conditions. The device has an integrated voltage scaling circuit, an adjustable temperature compensation circuit, and can be driven with either a single-ended or differential input signal. The device can be used for transducer signal conditioning, battery management, level shifting, and threshold detection.

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