BD4947FVE-TR

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PMIC - Supervisors

BD4947FVE-TR is a voltage supervisor IC developed by ROHM that is a part of their family of PMIC (Power Management IC) supervisors. It monitors system voltage levels to ensure accurate operation and can be applied to various industrial systems, home appliances, automated systems, etc.

BD4947FVE-TR is a single-channel voltage supervisor IC that is used to detect and protect against unwanted voltage levels and power faults. It monitors system voltage levels and will output an active LOW signal when a voltage level outside of the specified range is detected. It contains a built-in reset timer and a power-on reset circuit that can be used in combination with other components to construct a system-level reset circuit to protect against unwanted voltage levels or power faults.

The application field of BD4947FVE-TR is quite wide. It can be used in various industrial systems such as PLCs and automation systems, electronic control systems, automotive electronic systems, etc. It can also be used in home appliances such as washing machines, dishwashers, and refrigerators as well as other consumer electronics devices.

BD4947FVE-TR has a built-in power-on reset circuit which is used to detect a low-power reset and ensure the system is in its working state when power is turned on. This is especially valuable in applications using batteries or in other systems where the power-supply is not always reliable. It also has an internal voltage monitor which can be used to detect a wide range of different voltages and can be used to protect against overvoltage and undervoltage situations.

The working principle of BD4947FVE-TR is based on a voltage comparator circuit. It has an input voltage pin which is compared to its internal reference voltage. When the voltage of the external power supply goes above or below the specified range, the voltage comparator circuit will trigger the output signal. This signal can then be used to actuate a reset circuit so that the system is safely powered off and protected from damage.

The BD4947FVE-TR also contains a built-in reset timer that can be used to ensure that the reset signal is timed correctly. This timer is used to ensure the reset signal is activated at the right time to ensure maximum protection against unwanted voltage levels and power faults. The reset time is configurable and can be set according to the specific system requirement.

In conclusion, BD4947FVE-TR is a single-channel voltage supervisor IC that can be used to monitor system voltage levels to ensure accurate operation and protect against unwanted voltage levels. It has a wide range of applications and contains a power-on reset circuit and internal voltage monitor which can be used in combination with other components to construct a system-level reset circuit to protect against unwanted voltage levels or power faults. Its working principle is based on a voltage comparator circuit and contains a reset timer which can be used to ensure the output reset signal is timed correctly and activated at the right time.

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