BD4937FVE-TR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power Management Integrated Circuit (PMIC) supervisors are a class of integrated circuit (IC) devices used to monitor and protect system power rails and reset microprocessors. The BD4937FVE-TR is a supervisor IC that includes a Voltage Detector Circuit and Voltage Suppressor Circuit to support a range of system functions. This article provides an overview of the application field, operational features, and working principle of the BD4937FVE-TR.

Applications

The BD4937FVE-TR can be applied to a wide range of systems and devices, such as automotive electronics, portable devices, personal computers, industrial equipment, home electronics and medical systems. Some applications include:

• Battery monitoring for power-hungry portable devices such as mobile phones, PDAs, and digital cameras.
• Airbag systems in automotive electronics
• Voltage level detection and power supply distribution in personal computers
• Circuit protection in industrial electronics and equipment
• Visual alarm systems in home electronics
• Safety monitoring systems in medical equipment

Operational Features

The BD4937FVE-TR provides a variety of features and functions including:

• Automatic reset based on the input voltage level.
• A programmable reset output delay circuit.
• A voltage detection output that can be used to detect the input voltage level.
• An internal voltage suppressor circuit to protect the chip from overvoltage.
• A power-on reset circuit to reset the system at power-up.
• A selection of detection voltage levels.
• A wide operating temperature range.

Working Principle

The BD4937FVE-TR supervisor IC functions by comparing the input voltage level to the programmed detection voltage level. When the input voltage level is higher than the detection voltage level, the circuit will output a logic “high” level, which can be used to trigger a reset event. This reset output can be delayed using the programmable circuit.

The internal voltage suppressor circuit helps protect the chip from overvoltage by disconnecting the input voltage when it exceeds a certain level. This helps ensure that the device is not damaged by sudden voltage surges.

The power-on reset circuit can be used to reset the system during power-up. It operates by monitoring the voltage level of the voltage supplied to the timer and generating a reset when the voltage drops below a certain level.

Finally, the BD4937FVE-TR is designed to operate in a wide temperature range to ensure reliable operation in a variety of conditions. The integrated circuit also has low power consumption and excellent noise immunity for further reliability.

Conclusion

The BD4937FVE-TR supervisor IC is a versatile solution for protecting various types of systems against sudden power surges and ensuring steady power supply. It includes a Voltage Detector Circuit and Voltage Suppressor Circuit to support a range of applications, and can be used in automotive electronics, portable devices, personal computers, industrial equipment, home electronics and medical systems. The chip also includes a selection of configurable features and a wide operating temperature range for reliable performance in a variety of conditions.

The specific data is subject to PDF, and the above content is for reference