LTC1726

PRODUCTION

Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watchdog Timer

Part Models: 14
1ku List Price: Starting From $2.23

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Overview

Monitors Three Inputs Simultaneously
- LTC1726-5: 5V, 3.3V and ADJ
- LTC1726-2.5: 2.5V, 3.3V and ADJ
±1.5% Threshold Accuracy Over Temperature
Low Supply Current: 16μA Typ
Adjustable Reset Timeout
Adjustable Watchdog Timeout
Active Low Open-Drain Reset Output
Power Supply Glitch Immunity
Guaranteed RESET for V_CC3 ≥ 1V or V_CC25/V_CC5 ≥ 1V
MS8 and SO-8 Packages

The LTC1726 is a triple supply monitor and microprocessor supervisory circuit with adjustable reset and watchdog functions intended for systems with multiple supply voltages. The part has a common open-drain reset output with an adjustable delay. The reset and watchdog time-out periods are both adjustable using external capacitors.

Tight 1.5% accuracy specifications and glitch immunity ensure reliable reset operation without false triggering.

The RST output is guaranteed to be in the correct state for V_CC5/V_CC25or V_CC3 down to 1V. The LTC1726 may also be configured to monitor any one or two V_CC inputs instead of three, depending on system requirements.

The low (16μA typical) supply current makes the LTC1726 ideal for power-conscious systems.

Applications

Desktop Computers
Notebook Computers
Intelligent Instruments
Portable Battery-Powered Equipment
Network Servers

Part Models: 14
1ku List Price: Starting From $2.23

Documentation

Data Sheet 1

LTC1726: Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watchdog Timer Data Sheet 04/23/2013

Reliability Data 1

R413 Reliability Data 03/26/2018

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
LTC1726EMS8-2.5#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726EMS8-2.5#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726EMS8-5#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726EMS8-5#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726ES8-2.5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726ES8-2.5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726ES8-5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726ES8-5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726HMS8-5#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726HMS8-5#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726IS8-2.5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726IS8-2.5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726IS8-5#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1726IS8-5#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3)
		PCN24_0004_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1726EMS8-2.5#PBF	PRODUCTION
LTC1726EMS8-2.5#TRPBF	PRODUCTION
LTC1726EMS8-5#PBF	PRODUCTION
LTC1726EMS8-5#TRPBF	PRODUCTION
LTC1726HMS8-5#PBF	PRODUCTION
LTC1726HMS8-5#TRPBF	PRODUCTION
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LTC1726EMS8-2.5#PBF	PRODUCTION
LTC1726EMS8-2.5#TRPBF	PRODUCTION
LTC1726EMS8-5#PBF	PRODUCTION
LTC1726EMS8-5#TRPBF	PRODUCTION
LTC1726HMS8-5#PBF	PRODUCTION
LTC1726HMS8-5#TRPBF	PRODUCTION
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package
		PCN24_0246_Form Material_Report Marking Comparison Delta Qualification Matrix
LTC1726ES8-2.5#PBF	PRODUCTION
LTC1726ES8-2.5#TRPBF	PRODUCTION
LTC1726ES8-5#PBF	PRODUCTION
LTC1726ES8-5#TRPBF	PRODUCTION
LTC1726IS8-2.5#PBF	PRODUCTION
LTC1726IS8-2.5#TRPBF	PRODUCTION
LTC1726IS8-5#PBF	PRODUCTION
LTC1726IS8-5#TRPBF	PRODUCTION
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
		PCN22_0255_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1726ES8-2.5#PBF	PRODUCTION
LTC1726ES8-2.5#TRPBF	PRODUCTION
LTC1726ES8-5#PBF	PRODUCTION
LTC1726ES8-5#TRPBF	PRODUCTION
LTC1726IS8-2.5#PBF	PRODUCTION
LTC1726IS8-2.5#TRPBF	PRODUCTION
LTC1726IS8-5#PBF	PRODUCTION
LTC1726IS8-5#TRPBF	PRODUCTION
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
		PCN21_0026_Form Material_Report Delta Qualification Matrix
LTC1726ES8-2.5#PBF	PRODUCTION
LTC1726ES8-2.5#TRPBF	PRODUCTION
LTC1726ES8-5#PBF	PRODUCTION
LTC1726ES8-5#TRPBF	PRODUCTION
LTC1726IS8-2.5#PBF	PRODUCTION
LTC1726IS8-2.5#TRPBF	PRODUCTION
LTC1726IS8-5#PBF	PRODUCTION
LTC1726IS8-5#TRPBF	PRODUCTION

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

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC1726-2.5
LTC1726-5

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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