LTC2934

PRODUCTION

Ultra-Low Power Adjustable Supervisor with Power-Fail Output

Data Sheet Product Selection Table
Viewing:

Overview

  • 500nA Quiescent Current
  • ±1.5% (Max) Accuracy over Temperature
  • Operates Down to 1.6V Supply
  • Adjustable Reset Threshold
  • Adjustable Power-Fail Threshold
  • Early Warning Power-Fail Output
  • Selectable 15ms or 200ms Reset Timeout
  • Manual Reset Input
  • Compact 8-Lead, 2mm × 2mm DFN and TSOT-23 (ThinSOT™) Packages

The LTC2934 ultra-low power voltage monitor provides system initialization, power-fail warning and reset generation functions. Low quiescent current (500nA typical) makes the LTC2934 an ideal choice for battery-operated applications.

Precision power-fail and reset voltages can be configured independently. Early warning of an impending low voltage condition is provided at the power-fail output (PFO) when the PFI input falls below 0.4V. Supervisory circuits monitor the ADJ input and pull RST low when ADJ falls below 0.4V. When ADJ is rising from an under-threshold condition, an internal reset timer is started after exceeding the ADJ threshold by 5%. The reset timeout delays the return of the RST output to a high state. A pushbutton switch connected to the MR input is typically used to force a manual reset. Outputs RST and PFO are available with open-drain (LTC2934-1) or active pull-up circuits (LTC2934-2). Operating temperature range is from –40ºC to 85ºC.

Applications

  • Portable Equipment
  • Battery-Powered Equipment
  • Security Systems
  • Point-of-Sale Devices
  • Wireless Systems
LTC2934
Ultra-Low Power Adjustable Supervisor with Power-Fail Output
Configurable Low Power Voltage Supervisor Selectable Reset Timeout Period 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

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

Hardware Ecosystem

Parts Product Life Cycle Description
Circuit Monitors 1
LTC2960
RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Protection Switches & Controllers 1
LTC4365
RECOMMENDED FOR NEW DESIGNS Overvoltage, Undervoltage and Reverse Supply Protection Controller
Supervisory Circuits & Reset ICs 1
LTC2935
PRODUCTION Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds
Modal heading
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

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC2934-1
  • LTC2934-2
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
LTC2943 : Facing some issues
2 Years Ago
Interceptors Request
View related discussion on EngineerZone®

Recently Viewed