NJM431D

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PMIC (Power Management Integrated Circuit) is an integrated circuit that provides a range of regulated services for controlling and managing power. This includes the protection of vulnerable components from overload and overvoltage, the provision of multiple power supply sources, and the efficient running of multiple current loads. Voltage references are of particular importance in the PMIC application field, as they provide reference voltages to standardize power supplies and to protect components from spikes in voltage. The NJM431D is one such voltage reference, providing a precision output voltage with just one adjustment element.

NJM431D is a positive voltage reference device with an output voltage of 4.31V. It is precisely designed with an error of ±0.2% and a temperature coefficient of ±20ppm/ºC. The device is highly accurate and stable, operable over a wide range of power supply values. NJM431D also includes a bandgap reference circuit, consisting of transistors and resistors that form a voltage divider circuit. The voltage divider is biased using a constant current, and the reference voltage is taken from the midpoint of the voltage divider. The NJM431D also incorporates a high-precision Output Voltage Adjustment (OVA) element, which allows for fine-tuning of the output voltage without sacrificing accuracy.

NJM431D is most commonly used for the supply voltage reference and temperature compensation in precision voltage reference systems, such as in A/D and D/A converters. It is also used as an output voltage regulator in electronic battery-operated systems, such as portable and mobile phones, PDA, and digital cameras. Further, the NJM431D device is also suited for a wide range of consumer and industrial applications, where an accurate and stable voltage reference is needed.

Due to its wide operating range, NJM431D is suitable for multiple battery backup systems. The device can operate in both series and parallel battery configurations, and provides a highly accurate output voltage to ensure that no spikes or drops in voltage occur as the battery voltage fluctuates. This allows for greater stability of the power supply and protection of components over a wide range of battery voltages and temperatures.

NJM431D is also used as a voltage reference in low-power, portable and expert systems, where an accurate and stable voltage reference is needed. The device provides a low power consumption of just 0.65mA, allowing it to operate in a wide range of portable systems. NJM431D also has good thermal stability, allowing it to maintain accurate and consistent operation even in extreme environmental conditions. This makes it ideal for use in many different types of portable device.

NJM431D has a wide range of applications, making it a highly versatile device for various power management and voltage regulation needs. It can be used for both AC and DC input, requiring only one adjustment element to provide a precise and stable voltage reference over a wide temperature range. The device can be used for multiple battery backup systems, as well as for supplying accurate and stable voltage references for various industrial and consumer applications. Utilizing the self-biasing bandgap reference circuit, the NJM431D is able to provide a highly accurate and stable reference over a wide range of input voltages and temperatures, making it one of the most reliable voltage references available.

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