MAX811

PRODUCTION

4-Pin µP Voltage Monitors with Manual Reset Input

4-Pin SOT Reset ICs with Manual Reset

Data Sheet (Rev. 5) Product Selection Table

Part Models: 10
1ku List Price: Starting From $1.82

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Overview

Integrated Voltage Monitor Increases System Robustness with Added Manual Reset
- Precision Monitoring of 3V, 3.3V, and 5V Power-Supply Voltages
- 140ms Min Power-On-Reset Pulse Width
  - - Active-Low RESET Output (MAX811), RESET Output (MAX812)
- Guaranteed Over Temperature
- Guaranteed Active-Low RESET Valid to V_CC = 1V (MAX811)
- Power-Supply Transient Immunity
Saves Board Space
- No External Components
- 4-Pin SOT143 Package
Low Power Consumption Simplifies Power-Supply Requirements
- 6µA Supply Current

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 V_CC supply voltage falls below a preset threshold, keeping it asserted for at least 140ms after V_CC has 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 V_CC down to 1V), while the MAX812 has an active-high RESET output. The reset comparator is designed to ignore fast transients on V_CC. 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.

Applications

Computers: Desktop, Workstation, Server
Controllers
Critical µP and µC Power Monitoring
Intelligent Instruments
Portable Battery-Powered Equipment

Part Models: 10
1ku List Price: Starting From $1.82

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX811LEUS+	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811LEUS+T	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811MEUS+	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811MEUS+T	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811REUS+	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811REUS+T	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811SEUS+	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811SEUS+T	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811TEUS+	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX811TEUS+T	4-SOT_23-N/A	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 4, 2015 - 1341_CANCELLATION ASSEMBLY
		pcn_1341_cancellation
MAX811LEUS+	PRODUCTION
MAX811LEUS+T	PRODUCTION
MAX811MEUS+	PRODUCTION
MAX811MEUS+T	PRODUCTION
MAX811REUS+	PRODUCTION
MAX811REUS+T	PRODUCTION
MAX811SEUS+	PRODUCTION
MAX811SEUS+T	PRODUCTION
MAX811TEUS+	PRODUCTION
MAX811TEUS+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Supervisory Circuits & Reset ICs 14
MAX6326	PRODUCTION	3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6327	PRODUCTION	3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6328	PRODUCTION	3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6332		3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits

MAX6333	PRODUCTION	3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
MAX6334	PRODUCTION	3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
MAX6335	PRODUCTION	4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
MAX6336	PRODUCTION	4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
MAX6337	PRODUCTION	4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
MAX812	PRODUCTION	4-Pin µP Voltage Monitors with Manual Reset Input
MAX803	PRODUCTION	3-Pin Microprocessor Reset Circuits
MAX6711	PRODUCTION	4-Pin SC70 Microprocessor Reset Circuits with Manual Reset Input
MAX6712	Obsolete	4-Pin SC70 Microprocessor Reset Circuits with Manual Reset Input
MAX6713	PRODUCTION	4-Pin SC70 Microprocessor Reset Circuits with Manual Reset Input

MAX811

Overview

Documentation

Data Sheet 1

Reliability Data 1

Design Note 3

Software Resources

Can't find the software or driver you need?

Hardware Ecosystem

Tools & Simulations

IBIS Model 2

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