The BD4846FVE is a voltage detector IC manufactured by Rohm Semiconductor. It is designed to monitor the power supply voltage and issue a reset signal to a microcontroller or other digital circuit when the voltage falls below a specified threshold. This prevents erratic behavior and data corruption caused by undervoltage conditions. The device is commonly used in applications requiring reliable power management and system stability, particularly in portable and battery-powered devices.

Applications:

• Microcontroller reset circuits
• CPU reset circuits
• Power supply monitoring
• Battery-powered devices
• Industrial control systems
• Automotive electronics
• Consumer electronics

Features:

• High-accuracy detection voltage
• Low current consumption
• CMOS output
• Small package size (SSOP5)
• Wide operating temperature range
• Hysteresis for stable operation

Benefits:

• Ensures reliable system operation by preventing malfunctions due to undervoltage
• Protects data integrity by preventing data corruption
• Extends battery life in portable devices due to its low power consumption
• Simplified system design with minimal external components required
• Suitable for a wide range of operating environments thanks to its wide temperature range
• Stable and predictable reset behavior due to integrated hysteresis

Additional Details:

The BD4846FVE is supplied in a compact SSOP5 (Shrink Small Outline Package) format, making it suitable for densely populated circuit boards. It utilizes a CMOS output stage, providing a clean and well-defined reset signal. The device exhibits extremely low quiescent current, minimizing its impact on system power budget. The built-in hysteresis characteristic prevents unwanted oscillations of the reset signal when the input voltage fluctuates near the detection threshold. The BD4846FVE offers a simple and cost-effective solution for undervoltage protection in a variety of electronic systems. Different detection voltage thresholds are available to meet the needs of specific applications. It is a popular choice for applications where reliable power management is critical.