The BU4919G-GTR is a voltage detector IC manufactured by Rohm Semiconductor. It is designed to monitor voltage levels in electronic circuits and provide a reset signal when the voltage drops below a certain threshold. This function is crucial for protecting microcontrollers and other sensitive components from malfunctioning due to undervoltage conditions.

Applications

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

Features

• High-accuracy voltage detection
• Low current consumption
• Open drain output
• Small package size
• Wide operating voltage range
• Hysteresis characteristics to prevent oscillation

Benefits

• Protects microcontrollers from data corruption and malfunction
• Ensures reliable system operation
• Extends battery life in portable devices
• Simplifies power supply design
• Reduces component count and board space
• Improved system stability with hysteresis feature

Additional Details

The BU4919G-GTR has a precise detection threshold, ensuring accurate voltage monitoring. Its low current consumption is especially important for battery-operated devices where power efficiency is critical. The open-drain output allows for flexible interfacing with different logic levels. The hysteresis characteristic prevents the output from oscillating when the input voltage is near the threshold level, ensuring a stable reset signal. The small package size makes it suitable for compact electronic devices. Rohm Semiconductor provides comprehensive datasheets and application notes to assist designers in implementing the BU4919G-GTR in their circuits. This voltage detector contributes to the overall reliability and stability of electronic systems by safeguarding them against undervoltage conditions.