BU4314G-TR

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Integrated circuits (ICs) are essential components of many electronic devices. In particular, Power Management Integrated Circuits (PMICs) are increasingly important for systems seeking to optimize power efficiency and runtime. BU4314G-TR is one such PMIC, falling into the category of Supervisors, which help ensure the overall system reliability through preventative measures. In this article, we will explore the main features of the BU4314G-TR, such as its application field and working principle.

The BU4314G-TR is part of the Power Management (PM) family of ICs from ROHM Semiconductor. It is specifically a voltage monitoring IC, also known as a voltage supervisor, used for reset control and system reliability. The device is designed to detect overvoltage, undervoltage, and power-on conditions in a variety of systems. It operates on a single power supply, while the output functions are selectable between open-drain and active-high.

The BU4314G-TR consists of three types of input pins: VCC, WD and ITL. The VCC pin is used to supply power to the device, and must be within the specified voltage range in order for the device to operate properly. The WD pin monitors the power supply, while the ITL pin is an internal terminal used to set the desired voltage threshold. When the voltage level drops below or rises above this threshold, the device will activate its output pin to reset the system.

In terms of application fields, the BU4314G-TR is most commonly used in digital circuitry for reset control, such as in overvoltage, undervoltage, and power-on reset functions. It is also used for memory retention and preserving digital states. The device can be applied to a variety of types of systems and configurations, including both single- and multi-chip designs. It is typically used in automotive, computer and consumer electronics, including HDDs, base station systems, home networks, and power supplies.

The BU4314G-TR is also accompanied by an adjustable voltage threshhold, allowing the device to be set to trigger a reset at various specific levels, depending on the system requirements. The device is designed to work with a single voltage supply, while the output enable pin can be set to either open-drain or active-high, allowing it to be used in a variety of different circuit configurations. The reset output is also available in both open-drain and active-high versions, for use in common applications.

In terms of working principle, the BU4314G-TR employs a voltage comparison formula based on its internal reference voltage, Vref. When supplied voltage, Vcc, goes above or below this reference voltage, the device will generate an output based on its logic level suitability. The output logic is determined by the output enable setting, which is either open-drain or active-high. Meanwhile, the reset output can also be set to either open-drain or active-high. This allows for a wide range of applications.

In conclusion, the BU4314G-TR is an important component in the power management market, especially in terms of reset control. It is designed to work with a single power supply, while the adjustable reset threshold and its open-drain and active-high output enable and reset output allow it to be used in a variety of circuits. It is most commonly used in digital circuitry for reset control, as well as in automotive, computer and consumer electronics.

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