Integrated Circuits (ICs)

MAX812MEUS

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Analog Devices Inc./Maxim Integrated

POWER SUPPLY SUPPORT CIRCUIT, FI

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Integrated Circuits (ICs)

MAX812MEUS

Active

Analog Devices Inc./Maxim Integrated

POWER SUPPLY SUPPORT CIRCUIT, FI

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MAX812MEUS

Mounting Type	Surface Mount
Number of Voltages Monitored	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output	Push-Pull, Totem Pole
Package / Case	TO-253AA, TO-253-4
Reset	Active High
Reset Timeout [Min]	140 ms
Supplier Device Package	SOT-23-4
Type	Power Supply Monitor

MAX812 Series

4-Pin µP Voltage Monitors with Manual Reset Input

Part	Type	Package / Case	Reset	Output	Number of Voltages Monitored	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Voltage - Threshold	Reset Timeout [Min]	Mounting Type
Analog Devices Inc./Maxim Integrated MAX812TEUS	Simple Reset/Power-On Reset	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-143-4	3.08 V	140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812TEUS-T	Simple Reset/Power-On Reset	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-143-4	3.08 V	140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812REUS	Power Supply Monitor	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-23-4	2.63 V	140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812LEUS-T	Simple Reset/Power-On Reset	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-143-4	4.63 V	140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812LEUS+T	Simple Reset/Power-On Reset	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-143-4	4.63 V	140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812REUS+T	Simple Reset/Power-On Reset	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-143-4	2.63 V	140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812MEUS	Power Supply Monitor	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-23-4		140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812SEUS+T	Simple Reset/Power-On Reset	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-143-4	2.93 V	140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812LEUS	Simple Reset/Power-On Reset	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-23-4	4.63 V	140 ms	Surface Mount
Analog Devices Inc./Maxim Integrated MAX812MEUS+T	Simple Reset/Power-On Reset	TO-253-4 TO-253AA	Active High	Push-Pull Totem Pole	1	85 C	-40 ¯C	SOT-143-4		140 ms	Surface Mount

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	102	$ 2.96

Description

General part information

MAX812 Series

The MAX811/MAX812 are low-power microprocessor (µP) supervisory circuits used to monitor power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V-powered or 3V-powered circuits. The MAX811/MAX812 also provide a debounced manual reset input.These devices perform a single function: They assert a reset signal whenever the VCCsupply voltage falls below a preset threshold, keeping it asserted for at least 140ms after VCChas risen above the reset threshold. The only difference between the two devices is that the MAX811 has an active-low RESET output (which is guaranteed to be in the correct state for VCCdown to 1V), while the MAX812 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC. Reset thresholds are available for operation with a variety of supply voltages.Low supply current makes the MAX811/MAX812 ideal for use in portable equipment. The devices come in a 4-pin SOT143 package.ApplicationsComputers: Desktop, Workstation, ServerControllersCritical µP and µC Power MonitoringIntelligent InstrumentsPortable Battery-Powered Equipment

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