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MAX6392 - Dual Voltage uP Supervisory Circuits

General Description

The MAX6391/MAX6392 microprocessor (µP) supervisory circuits provide sequenced logic reset outputs for multicomponent or dual-voltage systems.

Each device can monitor two supply voltages and time-sequence two reset outputs to control the order in which system components are turned on and off.

Key Features

  • o Preset VCC Reset Threshold Voltages from 1.58V to 4.63V (master supply) o Customer-Adjustable RESET IN2 to Monitor Voltages Down to 625mV (secondary supply) o Fixed (140ms min) RESET1 Timeout o Fixed (140ms min) or Customer-Adjustable RESET2 Timeout Period o Guaranteed Reset Valid to VCC = 1V o Active-Low Open-Drain Outputs or PushPull/Open-Drain Combination o Internal Open-Drain Pullup Resistors (for external VOH voltage connections) o Manual Reset Input (MAX6392 only) o Immune to Short Negat.

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Other Datasheets by Maxim Integrated (Analog Devices)

Part Number Description
MAX6390 Low-Power uP Reset Circuits
MAX6391 Dual Voltage uP Supervisory Circuits
MAX6397 Overvoltage Protection Switch/Limiter Controllers
MAX6398 Overvoltage Protection Switch/Limiter Controllers
MAX6342 6-Pin uP Reset Circuit

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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www.DataSheet4U.com 19-2210; Rev 1; 10/02 Dual-Voltage µP Supervisory Circuits with Sequenced Reset Outputs General Description The MAX6391/MAX6392 microprocessor (µP) supervisory circuits provide sequenced logic reset outputs for multicomponent or dual-voltage systems. Each device can monitor two supply voltages and time-sequence two reset outputs to control the order in which system components are turned on and off. The MAX6391/MAX6392 increase system reliability and reduce circuit complexity and cost compared to separate ICs or discrete components. The MAX6391/MAX6392 monitor V CC as the master reset supply. Both RESET1 and RESET2 are asserted whenever VCC drops below the selected factory-fixed reset threshold voltage.