ADM809-5S - Analog Devices

ADM809-5S Microprocessor Supervisory Circuit

The supervisory circuit of the ADM809-5L/ADM809-5S monitors the power supply voltage in microprocessor systems. It provides a reset output during power-up, power-down, and brownout conditions. On power-up, an internal timer holds reset asserted for 55 ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remain.

Features

Specified over temperature Low power consumption: 17 μA Precision voltage monitor: 3 V, 5 V options Reset assertion down to 1 V VCC 30 ms minimum power-on reset Logic low RESET output Available in SOT-23 and SC70 packages APPLICATIONS Microprocessor systems Computers Controllers Intelligent instruments Automotive systems GENERAL DESCRIPTION The supervisory circuit of the ADM809-5L/ADM809-5S monitors the power supply voltage in microprocessor systems. It provides a reset output during power-up, power-down, and brownout conditions. On power-up, an internal timer holds reset asserted for 55 ms. T.