The BD4841FVE is a voltage detector IC produced by Rohm Semiconductor. It serves as a crucial component in power management systems, monitoring the input voltage and providing a reset signal when the voltage falls below a predetermined threshold. This functionality is essential for protecting sensitive electronic circuits from damage due to undervoltage conditions and ensuring stable system operation.

Applications

• Microcontroller-Based Systems: Provides a reliable reset signal to microcontrollers during power-up, power-down, or brownout conditions.
• Memory Protection: Safeguards data stored in memory by triggering a reset when the supply voltage becomes unstable, preventing data corruption.
• Power Management Circuits: Monitors the voltage levels in power management ICs and takes corrective action when necessary to maintain stable operation.
• Automotive Electronics: Ensures the reliability of automotive electronic systems by detecting and responding to undervoltage conditions.
• Industrial Control Equipment: Protects sensitive electronic components in industrial control systems from power supply fluctuations.

Features

• Highly Accurate Voltage Detection: Provides precise monitoring of the supply voltage with a tightly controlled threshold.
• Low Current Consumption: Operates with minimal power consumption, making it suitable for battery-powered and energy-efficient applications.
• Open Drain Output: Features an open drain output, offering flexibility in interfacing with various logic circuits.
• Small Package Size: Available in a compact package, ideal for space-constrained applications.
• Wide Operating Temperature Range: Operates reliably over a wide range of ambient temperatures.
• Built-in Hysteresis: Includes hysteresis to prevent oscillations around the threshold voltage.

Benefits

• Improved System Reliability: Enhances system reliability by preventing malfunctions caused by undervoltage conditions.
• Data Integrity Protection: Safeguards data by initiating a reset before data corruption can occur.
• Extended Battery Life: Low power consumption contributes to longer battery life in portable devices.
• Simplified Design: Streamlines the design process with easy integration into existing systems.
• Cost-Effective Solution: Offers a cost-effective way to monitor and protect electronic systems from voltage fluctuations.

Additional Details

The BD4841FVE requires an external pull-up resistor on its open-drain output. The reset threshold voltage is precisely calibrated during manufacturing. The device complies with RoHS standards.