NCV431BVDR2G

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The NCV431BVDR2G is a Voltage Reference advanced part developed by ON Semiconductor. It is a type of devices that belong to the category of PMIC – Voltage Reference. This part helps designers to maintain an exact reference voltage in their projects mainly for the purpose of circuit protection and precision monitoring of voltage levels.

The NCV431BVDR2G is a temperature compensated reference (TCR) device with a 2.000V output voltage. It offers a tight tolerance of ±0.2% and 6 µV/°C of temperature drift. The linear output accuracy is maintained over full temperature range (–40°C to +125°C) and over several years of operations. It is provided with a series of features such as high input voltage transient protection capability, internal output discharging and external synchronization of the output voltage. It has a wide input voltage range of 3.0V to 25V.

The output voltage of this device is regulated even after changes in the input voltage, dynamic load and temperature. No output function temperature coefficient exists. The temperature coefficient is implemented in the devices to allow the device to maintain a very low temperature coefficient over temperature and time. The device has a maximum current of 45 mA at a full load range of 1.9V to 3.5V and a maximum power dissipation of 400 mW.

The device is typically used in applications where an accurate and stable voltage reference is required such as data acquisition systems, test instrumentation, solar power systems, temperature controllers, battery charge controllers, current monitoring systems and general purpose voltage regulator applications.

The NCV431BVDR2G has two main modes of operation, series mode and shunt mode. In series mode one of the Reference Out pins is connected to the system ground, allowing the device to regulate the output voltage even after changes in input voltage, dynamic load and temperature, yielding a very low tolerance of ±0.2%. In shunt mode, the output voltage of the device is synchronous with the input voltage, allowing the device to dynamically regulate the output voltage.

In addition to using this device in voltage regulator applications, it can also be used in monitoring and testing applications. For example, this device can be used to monitor the voltage drift of an analog to digital converter (ADC) or a digital to analog converter (DAC). Additionally, it can be used to measure the offset of an amplifier or to serve as a zero reference voltage.

The device has a very low power consumption and is available in a small 7-pin PowerDI® package with exposed pad which takes up only 32.435 mm² of board space. This makes it suitable for use in space constrained applications. The device has an operating temperature range of –55°C to +125°C and is available in Tape and Reel packaging.

In conclusion, the NCV431BVDR2G is a sophisticated voltage reference device designed to offer an accurate, stable and low power consumption reference voltage. Its wide application range and small package size make it a suitable choice for a variety of applications that require a voltage reference such as data acquisition systems, test instrumentation, solar power systems, temperature controllers, battery charge controllers, current monitoring systems and general purpose voltage regulator applications.

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