Product Overview: DS1815-20+T&R

The DS1815-20+T&R is a versatile and reliable microprocessor supervisory circuit designed and manufactured by Maxim Integrated, a renowned leader in the development of innovative analog and mixed-signal products. This component is an integral part of a system's reliability, providing precision monitoring of power supply voltages and safeguarding microprocessors against the dangers of unpredictable system behavior due to power failures.

Engineered to maintain system integrity, the DS1815-20+T&R operates by monitoring the system's voltage levels. When the voltage drops below a predefined threshold, the device asserts a reset signal, which remains active until the system voltage stabilizes and a set period of time has elapsed. This reset signal ensures that the microprocessor and associated peripherals are reset simultaneously, establishing a clean start-up sequence once normal operating conditions are restored.

The DS1815-20+T&R is specifically calibrated to a threshold voltage of 2.0V, making it suitable for low-voltage applications. Its ease of integration into various designs is facilitated by its small form factor, being available in a convenient tape and reel (T&R) packaging, which streamlines the manufacturing process for high-volume production.

Key features of the DS1815-20+T&R include:

• Accurate Power-Fail Monitoring: The device ensures that power levels are consistently monitored, providing high precision in power-fail detection.
• Low Power Consumption: Its design focuses on energy efficiency, which helps to minimize the overall power consumption of the system it is integrated into.
• Automatic Reset Generation: Upon detection of an out-of-tolerance power supply condition, the DS1815-20+T&R automatically generates a reset signal for the microprocessor.
• Compact SOT-23 Packaging: The small size of the SOT-23 package allows for a minimal footprint on the PCB, which is advantageous for space-constrained applications.

Applications for the DS1815-20+T&R are diverse and include computers, embedded systems, portable/battery-powered equipment, and industrial controllers. By providing a critical protective measure for microprocessor-based systems, this supervisory circuit from Maxim Integrated is an essential component for enhancing system reliability and performance.