Maxim Integrated MAX6381LT30D3+T Microprocessor Reset Circuit

The MAX6381LT30D3+T is a compact, high-precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a reliable solution for systems that require a reset signal to the µP whenever the supply voltage drops below a predetermined threshold. This tiny device is a crucial component for maintaining system integrity and preventing data corruption during power failures or brownouts.

Key Features

• Voltage Monitoring: The MAX6381LT30D3+T monitors a fixed 3.0V supply voltage, ensuring that the connected microprocessor operates within its specified voltage range for optimal performance.
• Reset Timeout: It offers a 140ms minimum power-on reset timeout (td) which provides the system with adequate time to stabilize before the microprocessor starts its operation.
• Low Power Consumption: Designed for power-sensitive applications, this device consumes minimal power, with a typical supply current of only 1.1µA, which helps to extend battery life in portable devices.
• High Accuracy: The reset threshold accuracy is maintained at ±1.5% over the entire temperature range, ensuring reliable operation under varying conditions.
• Operating Temperature Range: The device functions effectively across a wide temperature range from -40°C to +125°C, accommodating various industrial and commercial environments.
• Package: It comes in a tiny, 6-pin SOT-23 package, making it suitable for space-constrained applications.
• Push-Pull Active-Low Reset Output: The output type is push-pull active-low which provides a strong signal for resetting the microprocessor without requiring an external pull-up resistor.

Applications

The MAX6381LT30D3+T is ideal for use in a variety of applications where reliable voltage monitoring is critical. These applications include:

• Portable/Battery-Powered Equipment
• Computers and Servers
• Embedded Systems
• Industrial Controllers
• Medical Devices

With its precise voltage monitoring capabilities and low power consumption, the MAX6381LT30D3+T from Maxim Integrated is an excellent choice for designers looking to enhance system reliability and safeguard against the consequences of unscheduled system resets.