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ADM809-5S - Microprocessor Supervisory Circuit

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.

Key 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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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. This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remains operational with VCC as low as 1 V.