LTC2904

PRODUCTION

Precision Dual Supply Monitor with Pin-Selectable Thresholds

Data Sheet Product Selection Table
Viewing:

Overview

  • Monitors Two Inputs Simultaneously
  • Nine Threshold Combinations
  • Three Supply Tolerances (5%, 7.5%, 10%)
  • Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature
  • Internal VCC Auto Select
  • Power Supply Glitch Immunity
  • 200ms Reset Time Delay (LTC2904 Only)
  • Adjustable Reset Time Delay (LTC2905 Only)
  • Open Drain RST Output
  • Guaranteed RST for V1 ≥ 1V or V2 ≥ 1V
  • Low Profile (1mm) SOT-23 (ThinSOT™) and Plastic (3mm × 2mm) DFN Packages

The LTC2904/LTC2905 are dual supply monitors intended for systems with two supply voltages. The dual supply monitors have a common reset output with delay (200ms for the LTC2904 and adjustable using an external capacitor for the LTC2905). This product provides a precise, space-conscious and micropower solution for supply monitoring.

The LTC2904/LTC2905 feature a tight 1.5% threshold accuracy over the whole operating temperature range, and glitch immunity to ensure reliable reset operation without false triggering. The open drain RST output is guaranteed to be in the correct state for inputs down to 1V.

The LTC2904/LTC2905 also feature three programming input pins, which program the threshold and tolerance level without requiring any external components. These three programming pins provide a total of 27 different voltage level and tolerance combinations, eliminating the need to have different parts for development and implementation of different systems with different voltage levels requiring monitoring function.

Applications

  • Desktop and Notebook Computers
  • Handheld Devices
  • Network Servers
  • Core, I/O Monitor
LTC2904
Precision Dual Supply Monitor with Pin-Selectable Thresholds
5V, 3.3V Dual Supply Monitor with 5% Tolerance Product Package 1 Product Package 2 Table 1. Voltage Threshold Programming
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

Technical Articles 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

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC2904
LTspice

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.

Latest Discussions

2 Years Ago
Interceptors Request
View related discussion on EngineerZone®

Recently Viewed