Product Overview: MAX690MJA from Maxim Integrated

The MAX690MJA is a highly reliable, precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in µP and digital systems. It provides a significant level of protection to ensure the proper operation of the system by delivering essential functions such as reset output during power-up, power-down, and brownout conditions. This device is particularly suitable for use in high-reliability applications where maintaining the integrity of the operational parameters is critical.

Encased in an 8-pin CERDIP package, the MAX690MJA offers a compact solution for systems that require monitoring of their power supply voltage. It is capable of providing a reset signal to the µP for a minimum of 100ms after VCC has risen above the reset threshold level, ensuring that the µP starts up in a predictable state every time.

Key Features:

• Voltage Monitoring: The device keeps a close watch on the power supply voltage and asserts a reset if it detects a voltage that is out of tolerance, ensuring that the µP and other system components are protected from unpredictable behavior due to power fluctuations.
• Power Supply Glitch Immunity: Temporary power supply glitches do not cause resets, thanks to the device's built-in immunity, which contributes to the stable operation of the system.
• Low Power Consumption: The MAX690MJA is designed for low power consumption, which is essential for battery-operated and power-sensitive applications.
• Manual Reset Capability: It includes a manual reset feature that allows the system to be reset on demand, providing additional control to the user or system operator.
• Wide Operating Temperature Range: With an operating temperature range from -55°C to +125°C, this device can function reliably in extreme environmental conditions.

Applications:

The MAX690MJA is ideal for a broad range of applications, including:

• Computers and Controllers
• Intelligent Instruments
• Portable/Battery-Powered Equipment
• Embedded Systems

Maxim Integrated's commitment to quality and reliability is evident in the MAX690MJA µP supervisory circuit, making it a trusted choice for safeguarding digital systems against power supply anomalies.