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MAX670 Datasheet Low-voltage / High-accuracy / Triple/quad Voltage P Supervisory Circuits In Sot Package

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-2324; Rev 1; 4/02 Low-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT.

General Description

The MAX6700/MAX6710 precision triple/quad voltage microprocessor (µP) supervisory circuits monitor up to four system-supply voltages and assert a single reset if any supply voltage drops below its preset threshold.

These devices significantly reduce system size and ponent count while improving reliability pared to separate ICs or discrete ponents.

A variety of factory-trimmed threshold voltages are available to acmodate different supply voltages and tolerances with minimal external ponent requirements.

Key Features

  • o Monitor Up to Four Power-Supply Voltages o Precision Factory-Set Reset Threshold Options for 5.0V, 3.3V, 3.0V, 2.5V, and 1.8V Supplies o Adjustable Voltage Threshold Monitors Down to 0.62V with 1.5% Accuracy o Low 35µA Supply Current o Open-Drain RESET Output with 10µA Internal Pullup o 5µs Propagation Delay (MAX6700) o 140ms (min) Reset Timeout Period (MAX6710) o RESET Valid to IN1 = 1V or IN2 = 1V o Immune to Short Monitored Supply Transients o Guaranteed from -40°C to +85°C o Small 6-Pin SO.

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