LTC2911

RECOMMENDED FOR NEW DESIGNS

Precision Triple Supply Monitor with Power-Fail Comparator

Data Sheet Product Selection Table
Viewing:

Overview

  • Ultralow Voltage Reset: VCC = 0.5V Guaranteed
  • Monitors Three Inputs Simultaneously:
    • 3.3V, 5V, ADJ (LTC2911-1)
    • 3.3V, 2.5V, ADJ (LTC2911-2)
    • 3.3V, 1.8V, ADJ (LTC2911-3)
    • 3.3V, 1.2V, ADJ (LTC2911-4)
    • 3.3V, ADJ, ADJ (LTC2911-5)
  • ±1.5% Threshold Accuracy
  • Power-Fail Monitor
  • RST State Can Be Held for Margining
  • Low Supply Current: 30μA Typical
  • Input Glitch Immunity
  • Adjustable Reset Timeout Period
  • Selectable Internal Timeout Saves Components
  • Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages
 

The LTC2911 is a low power, high accuracy triple supply monitor with a power-fail comparator. Reset timeout may be selected with an external capacitor or set to an internally generated 200ms.

The V1 pin monitors a 3.3V supply. The V2 pin monitors a 5V, 2.5V, 1.8V, 1.2V or adjustable supply. A third adjustable input has a nominal 0.5V threshold allowing a resistive divider to configure its threshold. All three comparators feature a tight 1.5% threshold accuracy over the entire operating temperature range while a glitch filter ensures reliable reset operation.

A spare comparator can be configured to provide early warning of a low voltage condition. It causes the PFO output to pull low when the voltage of the PFI input falls below 0.5V, allowing the power-fail threshold to be configured with a resistive divider. A latch feature on the TMR pin allows the RST output to be latched to prevent system resets, simplifying margin testing.

Applications

  • Network Servers
  • Desktop and Notebook Computers
  • Automotive and Industrial Electronics
 
LTC2911
Precision Triple Supply Monitor with Power-Fail Comparator
RST Output Voltage With 10k Pull-Up to V1 Product Package 1 Product Package 2
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

Data Sheet

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

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Latest Discussions

2 Years Ago
Interceptors Request
View related discussion on EngineerZone®

Recently Viewed