LTC2935

PRODUCTION

Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds

Data Sheet Product Selection Table
Part Models
32
1ku List Price
Starting From $1.50
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Part Details

  • 500nA Quiescent Current
  • ±1.5% (Max) Accuracy over Temperature
  • Integrated Precision Attenuators
  • Eight Pin-Selectable Reset Thresholds
  • Eight Pin-Selectable Power-Fail Thresholds
  • Early Warning Power-Fail Output
  • 200ms Reset Timeout
  • Manual Reset Input
  • Compact 8-Lead, 2mm × 2mm DFN and TSOT-23 (ThinSOT™) Packages
LTC2935
Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds
Configurable Low Power Voltage Monitor Product Package 1 Product Package 2 Falling Threshold Selection Table
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 3

Technical Articles 1

Data Sheet

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

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Hardware Ecosystem

Parts Product Life Cycle Description
Dual-Supply Monitors 1
LTC2960
RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Single-Supply Monitors 1
LTC2934
PRODUCTION Ultra-Low Power Adjustable Supervisor with Power-Fail Output
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4365
RECOMMENDED FOR NEW DESIGNS Overvoltage, Undervoltage and Reverse Supply Protection Controller
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC2935-1
  • LTC2935-2
  • LTC2935-3
  • LTC2935-4
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.

Evaluation Kits

eval board
schematic 1
DC2321A

Dust Energy Harvesting Demo Board with E-Ink Display, Designed to Connect to the DC2344A or DC2509A

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Product Details

Demonstration circuit 2321A is a low power wireless sensor node development platform equipped with an E-ink display for user feedback. The system is capable of monitoring and managing its available energy, logging information from sensors and sharing this data over a wireless network.


The board is designed to connect to the DC2344A or DC2509A energy harvesting demonstration boards which output a regulated power supply as well as status information from energy harvesting ICs and their backup batteries. Two coulomb counters on the DC2321A allow the processor to monitor the energy output of these batteries which will vary depending on the amount of energy which can be harvested from the system’s surroundings.


A DC2274A-A SmartMesh Manager must be used in order to evaluate the networking features of the DC2321A.

eval board
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
DC2042A

Energy Harvesting (EH) Multi-Source Demo Board

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Product Details

DC2042A - Demo Board for:
LTC3588-1 Piezoelectric Energy Harvesting Power Supply
LTC3108 Ultralow Voltage Step-Up Converter and Power Manager
LTC3105 400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up
LTC3459 10V Micropower Synchronous Boost Converter in ThinSOT
LTC2935 Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds


 


eval board
schematic 7
DC2080A

Energy Harvesting (EH) Multi-Source Demo Board with Transducers

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Product Details

The DC2080 is a versatile energy harvesting demo board that is capable of accepting piezoelectric, solar, 4mA to 20mA loops, thermal powered energy sources or any high impedance AC or DC source. The board contains four independent circuits consisting of the following EH ICs:


  • LTC3588-1: Piezoelectric Energy Harvesting Power Supply
  • LTC3108: Ultralow Voltage Step-Up Converter and Power Manager
  • LTC3105: Step-Up DC/DC Converter with Power Point Control and LDO Regulator
  • LTC3459: 10V Micropower Synchronous Boost Converter
  • LTC2935-2 and LTC2935-4: Ultralow Power Supervisor with Power-Fail Output Selectable Thresholds

The board is designed to connect to the Silicon Labs EFM32™ Wonder Gecko Starter Kit (Part No:EFM32WG-STK3800). It also includes two energy harvester transducers (TEG and Solar) and a terminal block for connecting a high impedance AC source. In addition, many turrets are provided, making it easy to connect additional transducers to the board. The board contains multiple jumpers that allow the board to be configured in various ways. The standard build for the board has 4 jumpers installed out of the possible 12 jumpers. The board is very customizable to the end users’ needs. This compatibility makes it a perfect evaluation tool for any low power energy harvesting system. Please refer to the individual data sheets for the operation of each power management circuit. The application section of the demo manual describes the system level functionality of this board and the various ways it can be used in early design prototyping.


Click here for information on "Energy Harvesting Solution To Go"!


To Purchase "Energy Harvesting Solution To Go", click here!
DC2321A
Dust Energy Harvesting Demo Board with E-Ink Display, Designed to Connect to the DC2344A or DC2509A
DC2321A Evaluation Board
DC2042A
Energy Harvesting (EH) Multi-Source Demo Board
DC2042A Demo Board DC2042A Demo Board DC2042A Demo Board DC2042A Demo Board DC2042A - Schematic
DC2080A
Energy Harvesting (EH) Multi-Source Demo Board with Transducers
DC2080A Image

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