BD4826FVE-TR

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PMIC (Power Management Integrated Circuits) are an integral part of many electronics systems that require efficient and reliable power management. The PMIC range includes primary and secondary power supervisors, linear regulators and complete power management solutions. Supervisors, also known as voltage supervisors, are used to monitor system voltage levels and provide fault protection against undervoltage conditions and/or excessive output current. They typically include logic inputs to signal remote reset, and open-drain/collector outputs to signal low voltage levels.BD4826FVE-TR is a CMOS type, precision voltage monitoring and reset supervisor integrated circuit from ROHM Semiconductor. This power supervisor is capable of monitoring three types of input supply inputs (VCCA, VCCQ, and VPP) and can detect an undervoltage condition for each of them. It is designed for embedded systems, microinterrupts, PLLs and other devices that need to maintain a stable supply voltage for reliable operation.

The BD4826FVE-TR is designed for both 3.3 and 5.0V applications, and is integrated with a 1.6V voltage reference to set the detection voltage threshold, allowing for precise voltage monitoring in applications where high accuracy is required. This feature allows the supervisor to be used even in systems with voltage levels of 1.8–5.5V. It also has an integrated voltage comparator that compares the actual supply voltage with the reference voltage and generates a low-level reset output signal during an undervoltage event. The reset signal responds within a few milliseconds, allowing for quick and reliable fault protection.

Additional features of the BD4826FVE-TR include adjustable delay times with both constant and variable threshold functions, a watchdog timer circuit, a built-in oscillator and low current consumption, making it ideal for battery-powered systems. In addition, this supervisor includes an external reset input, allowing it to be controlled by an external device such as a microcontroller. This feature can provide better system control and flexibility, in particular when powering up, powering down or during system operation.

The BD4826FVE-TR has a wide array of applications that require effective voltage monitoring and protection. It can be used in laptops, cellular phones, PDAs, optical drives, digital TVs and other consumer electronics products to maintain stable supply voltage and prevent system malfunctions. Additionally, the BD4826FVE-TR can be used in automotive, industrial and instrumentation applications to monitor and protect against voltage fluctuations, as well as to prevent data losses.

To sum up, the BD4826FVE-TR is an ideal solution for efficient and reliable system power management. It can monitor three input voltages with high accuracy, and its reset output responds quickly and reliably to undervoltage conditions. It is suitable for a wide range of applications for effective voltage monitoring and protection, including electronic products and automotive, industrial and instrumentation applications.

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