BU4937F-TR

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Electronic devices used today come in many different shapes and sizes, from tiny microprocessors to advanced power inverters. For all of these devices to work together, they must be properly regulated and monitored to ensure a smooth and reliable operation. This is where PMIC – Supervisors come in. PMIC – Supervisors are designed to monitor and regulate the voltage levels throughout a circuit or the power rails of a system. The BU4937F-TR is a commonly used PMIC – Supervisor, developed by ROHM Semiconductor. This article will discuss the BU4937F-TR’s application field and working principle.

The BU4937F-TR was designed to take incoming voltage levels and regulate them to a specified level. It is commonly used in systems that employ multiple power rails. In these systems, the BU4937F-TR monitors the various power supply voltages and regulates them as needed. The BU4937F-TR also features over-voltage protection, which prevents damage to components from a sudden increase in voltage. This over-voltage protection can also be used to detect faults within the system and shut it down, protecting components from further damage.

The BU4937F-TR is suitable for use in a wide range of applications, including industrial control systems, medical imaging equipment, and automotive electronics. In these systems, the BU4937F-TR can be used to monitor and regulate the supply voltage of various components in order to ensure a reliable operation. The BU4937F-TR also features an interrupt output signal, which can be used to activate specific functions such as fault detection or shutdown of the system.

The BU4937F-TR is a voltage detective device with a built-in analog comparator, which compares the input voltage to a reference voltage and outputs the result. The BU4937F-TR also has a power supply lockout function, which prevents the device from operating if the input voltage is below the specified level. This feature can be used to prevent damage to other components from low supply voltages.

The BU4937F-TR features three separate reset output signals: one active low, one active high, and one open drain output. These outputs, along with the interrupt output, can be used to communicate status information within a system. Additionally, the BU4937F-TR has an optional foldback mode, which limits the output current if the input voltage or output load exceeds a predetermined level.

In summary, the BU4937F-TR is a PMIC – Supervisor, commonly used in systems that require voltage regulation and monitoring. It is suitable for a range of applications, including industrial control systems, medical imaging equipment, and automotive electronics. The BU4937F-TR features an analog comparator, which compares incoming and outgoing voltages, as well as a power supply lockout, reset output signals, and optional foldback mode. Together, these features enable the reliable and safe operation of many electronic systems.

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