The MB3761PF-G-BND-EF is a power supply monitoring integrated circuit (IC) manufactured by Fujitsu Electronics America, Inc. It's designed to supervise power supply voltages and provide a reset signal to microcontrollers or microprocessors when a voltage fault occurs, such as undervoltage or overvoltage conditions. This helps prevent data corruption and ensures stable system operation.

Applications

• Microcontroller and microprocessor-based systems
• Power supply monitoring circuits
• Embedded systems
• Industrial control equipment
• Automotive electronics

Features

• Monitors power supply voltage
• Generates reset signal upon voltage fault (undervoltage/overvoltage)
• Adjustable reset delay time (typically with an external capacitor)
• Low current consumption
• Open drain/collector reset output
• Wide operating voltage range
• Pb-free package

Benefits

• Prevents system malfunction due to power supply issues
• Protects data integrity
• Enhances system reliability
• Simplifies power supply monitoring design
• Reduces system downtime
• Suitable for battery-powered applications due to low power consumption
• Complies with environmental regulations (Pb-free)

Additional Details

The MB3761PF-G-BND-EF continuously monitors the input voltage. When the voltage falls below a specific threshold (undervoltage) or exceeds a threshold (overvoltage), the IC activates its reset output. The reset output is typically an open drain/collector, allowing it to be easily interfaced with various microcontrollers and microprocessors. The reset delay time is often adjustable by adding an external capacitor, providing flexibility in configuring the reset pulse duration. This ensures that the system has enough time to stabilize after a voltage fault is detected. The low current consumption makes it suitable for use in power-sensitive applications. The Pb-free package complies with environmental regulations restricting the use of lead in electronic components. The precise voltage thresholds and other specifications are available in the product datasheet. The "-G-BND-EF" suffix likely refers to specific packaging and environmental compliance details.