The DS1817R-5+T&R from Maxim Integrated is a robust, low-power microprocessor (µP) supervisory circuit designed to monitor the power supplies in µP and digital systems. It provides a precise, factory-calibrated, temperature-compensated voltage reference, and a comparator circuit to monitor the status of the power supply (V_CC).

Key Features

• Automatic Reset Generation: Upon detection of out-of-tolerance power supply conditions, the DS1817R-5+T&R asserts a reset signal to prevent system errors. The reset signal remains asserted until V_CC returns to an acceptable level and a preset timeout period has elapsed, ensuring system stability.
• Factory-Trimmed V_CC Reset Thresholds: The device comes with preset V_CC reset threshold voltages, which are precisely trimmed at the factory, eliminating the need for external adjustments and ensuring reliable operation.
• Low Power Consumption: Designed for power-sensitive applications, this supervisory circuit operates with minimal power consumption, extending the life of battery-powered devices.
• Push-Pull Active-Low Reset Output: The active-low RESET output is provided in a push-pull configuration, which does not require an external pull-up resistor and simplifies circuit design.
• Temperature Range: The DS1817R-5+T&R is specified to operate over an industrial temperature range, making it suitable for harsh environments.
• Compact SOT-23 Packaging: This device is offered in a small, 5-pin SOT-23 package, which is ideal for space-constrained applications.

Applications

The DS1817R-5+T&R is versatile and can be used in a wide array of applications where reliable system operation is a priority. It is particularly well-suited for:

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

Ordering Information

The product is available in tape and reel (T&R) format, facilitating automated assembly processes for high-volume production requirements. For ordering, refer to the part number DS1817R-5+T&R.