MAX691ACWE-T – MAXIM INTEGRATED

The Maxim Integrated MAX691ACWE-T is a microprocessor supervisory circuit designed for monitoring power-supply voltages in microprocessor systems. It provides power-on reset, watchdog timing, and low-battery detection. The device asserts a reset signal whenever the VCC supply voltage drops below a factory-trimmed reset threshold, ensuring proper system initialization. The MAX691ACWE-T features a watchdog timer that monitors microprocessor activity and generates a reset signal if the processor fails to strobe the watchdog input within a specified timeout period. Its open-drain reset output is rated for 5V OUTPUT ONLY and can sink up to 100mA OUTPUT ONLY. Housed in a 16-pin Wide SO SMD package, the MAX691ACWE-T operates reliably over the –40°C to 85°C temperature range. Common applications include embedded systems, industrial controllers, and portable equipment where reliable microprocessor operation is critical. Its advantage lies in its compact size and integrated functionality, simplifying circuit design and improving system robustness against power supply variations and processor malfunctions.