MAX690T

PRODUCTION

3.0V/3.3V Microprocessor Supervisory Circuits

Industry's-First Battery-Backup Supervisor for 3.3V/3.0V Systems

Data Sheet (Rev. 3) Product Selection Table

Part Models: 4
1ku List Price: Starting From $5.30

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Overview

Active-Low RESET and RESET Outputs
Manual Reset Input
Precision Supply-Voltage Monitor
200ms Reset Time Delay
Watchdog Timer (1.6sec timeout)
Battery-Backup Power Switching-Battery Can Exceed V_CC in Normal Operation
40µA V_CC Supply Current
1µA Battery Supply Current
Voltage Monitor for Power-Fail or Low-Battery Warning
Guaranteed Active-Low RESET Assertion to V_CC = 1V
8-Pin DIP and SO Packages

These microprocessor (µP) supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery-control functions in µP systems. They significantly improve system reliability and accuracy compared to separate ICs or discrete components.

These devices are designed for use in systems powered by 3.0V or 3.3V supplies. See the selector guide in the back of this data sheet for similar devices designed for 5V systems. The suffixes denote different reset threshold voltages: 3.075V (T), 2.925V (S), and 2.625V (R) (see Reset Threshold section in the Detailed Description). All these parts are available in 8-pin DIP and SO packages. Functions offered in this series are as follows:

Part	Active-Low Reset	Active-High Reset	Watchdog Input	Manual Reset Input	Backup-Battery Switch	Power-Fail Threshold Accuracy	Power-Fail Comparator	Reset Window
MAX690	√		√		√	±4%	√	±75mV
MAX704	√			√	√	±4%	√	±75mV
MAX802	√		√		√	±2%	√	±2%
MAX804		√	√		√	±2%	√	±2%
MAX805		√	√		√	±4%	√	±75mV
MAX806	√			√	√	±2%	√	±2%

Applications

Battery-Powered Computers/Controllers
Critical µP Monitoring
Embedded Controllers
Intelligent Instruments
Portable Equipment

Part Models: 4
1ku List Price: Starting From $5.30

Documentation

Data Sheet 1

MAX690R-MAX806T: 3.0V/3.3V Microprocessor Supervisory Circuits Data Sheet (Rev.3) 04/01/2015

Reliability Data 1

MAX690T Reliability Data 01/12/2023

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
MAX690TCSA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX690TCSA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX690TESA+	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX690TESA+T	Small-Outline IC, Narrow (0.15in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 30, 2020 - 1702R2 ASSEMBLY
		pcn_1702r2
MAX690TCSA+	PRODUCTION
MAX690TESA+	PRODUCTION
MAX690TESA+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 4
MAX6361	PRODUCTION	SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup
MAX6362	PRODUCTION	SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup
MAX6363	PRODUCTION	SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup
MAX6364	PRODUCTION	SOT23, Low-Power Microprocessor Supervisory Circuits with Battery Backup

Tools & Simulations

IBIS Model 1

MAX690T IBIS Model

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