The BD5219G-2CGTR is a voltage detector IC produced by Rohm Semiconductor. It's designed to monitor voltage levels and output a reset signal when the voltage drops below a specific threshold. This ensures that systems operate reliably by preventing errors caused by insufficient voltage.

Applications

• Microcontroller reset circuits
• Power supply monitoring
• System voltage supervision
• Portable devices
• Industrial control systems

Features

• High-accuracy detection voltage
• Ultra-low current consumption
• Built-in hysteresis
• Open drain output
• Small package (e.g., SOT-25)

Benefits

• Prevents malfunctions due to undervoltage
• Ensures reliable microcontroller operation
• Extends battery life in portable devices
• Provides stable reset signals
• Reduces board space requirements

Additional Details

The BD5219G-2CGTR is a highly accurate voltage detector with extremely low current consumption. Its primary function is to monitor the supply voltage and generate a reset signal when the voltage falls below a predetermined threshold. The high-accuracy detection voltage ensures that the system is protected from undervoltage conditions. The ultra-low current consumption makes it suitable for battery-powered applications where minimizing power consumption is critical. The built-in hysteresis prevents oscillations around the threshold voltage, ensuring a stable and reliable reset signal. The open drain output allows for flexible connection to various microcontrollers and other digital circuits. The small package size reduces board space requirements, making it ideal for compact designs. The specific voltage threshold for the BD5219G-2CGTR is 1.9V.

This IC is typically used to protect microcontrollers and other sensitive components from damage caused by low voltage conditions. It can also be used to monitor the voltage of batteries and other power sources. Its reliability and low power consumption make it an excellent choice for a wide range of applications.