The MM3416A48URE is a voltage detector IC manufactured by Mitsumi Electric. This type of IC is designed to monitor the voltage level of a power supply and issue a reset signal when the voltage falls below a specific threshold. This function is essential for maintaining the stability and reliability of electronic circuits and preventing data corruption.

Applications

• Microcontroller and Microprocessor Systems: Used to provide a reliable reset signal during power-up, power-down, and brownout conditions.
• Battery-Powered Devices: Monitors battery voltage to prevent deep discharge and potential damage to the battery or device.
• Power Supply Monitoring: Detects undervoltage conditions in power supplies and triggers protective measures.
• Real-Time Clocks (RTC): Ensures accurate timekeeping by resetting the RTC during voltage instability.
• Memory Protection: Prevents data corruption in volatile memory during power failures or brownouts.

Features

• Precise Voltage Detection: Accurately monitors the voltage level and triggers a reset signal when the voltage drops below the set threshold.
• Low Quiescent Current: Minimizes power consumption, which is particularly important in battery-powered applications.
• Open-Drain Output: Provides flexibility in interfacing with various microcontroller and logic circuits.
• Small Package Size: Suitable for use in compact electronic devices where board space is limited.
• Hysteresis: Prevents oscillations in the output signal caused by noise or minor voltage fluctuations.

Benefits

• Improved System Stability: Ensures stable and predictable system operation by resetting the system during voltage dips and brownouts.
• Data Integrity: Protects data stored in memory from corruption during power failures or unstable voltage conditions.
• Extended Battery Life: Low power consumption helps to extend the operational life of battery-powered devices.
• Simplified Circuit Design: Integrated voltage detection function simplifies circuit design and reduces the number of external components required.
• Enhanced Reliability: Provides a robust and dependable solution for voltage monitoring and system reset.

Technical Specifications

While the definitive specifications are in the official Mitsumi datasheet, typical parameters for the MM3416A48URE and similar voltage detectors include:

• Detection Voltage: 4.8V (as indicated by the part number).
• Operating Voltage Range: Typically 1.0V to 5.5V.
• Supply Current: Typically less than 1 μA.
• Output Type: Open-drain N-channel MOSFET.
• Operating Temperature Range: -40°C to +85°C.
• Package: SOT-23 or similar small package.

The MM3416A48URE offers a reliable and efficient solution for voltage monitoring and system reset in a broad range of electronic applications, ensuring stable and safe operation.