BD5233FVE-TR

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BD5233FVE-TR is a Voltage Supervisors by ROHM Semiconductor. It is part of the PMIC – Supervisors range of products created to help stabilize voltages in circuit boards. The main function of the device is to protect the circuit boards from overvoltages and low voltages. It also allows for better control of the circuit board’s voltage regulation.

The BD5233FVE-TR is a single-channel 3.2 to 5.5V voltage supervisor with internal Voltage Reference and open drain output. The supervisor is suitable for voltage monitoring in applications such as digital cameras, mobile devices, and other portable products. The output type of the device is open drain and it is available in 2 pin package (2.5x3.9x0.8mm). The voltage supervisor is designed to be used in applications where over and under voltage monitoring is necessary.

The main features of the BD5233FVE-TR include a 3.2V to 5.5V input voltage range, programmable over-voltage/under-voltage threshold voltage range of 0.95V to 2.8V, a 0.575V typical output voltage threshold and a 2.8V typical maximum output voltage. The BD5233FVE-TR has an operating temperature range of -40℃ to +85℃ and an Icc operating current of 1µA (Typ).

The working principle of the BD5233FVE-TR can be seen in the diagram below. The device is composed of an internal voltage regulator, an analog comparator, and an open drain pulldown FET. The voltage regulator creates an internal voltage reference. This reference is compared to the input voltage. The comparator signal is then fed to the FET’s gate. If the input voltage is below the programmed threshold voltage, the FET will be turned on and the output of the device will be pulled to ground. If the input voltage is greater than the programmed threshold voltage, the FET will be turned off, and the output will remain high. This allows the device to be used as a voltage supervisor, which monitors the input voltage and turns on or off the output based on whether or not the input voltage is within the programmed threshold range.

The BD5233FVE-TR is ideal for applications such as Mobile phones, PDA’s and digital cameras. It is well-suited for use in portable devices where smaller sizes, low power consumption, and accuracy are needed. It has low static power consumption and high accuracy and is suitable for a wide range of voltage monitoring applications.

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