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LTC2919

Analog Devices
Part Number LTC2919
Manufacturer Analog Devices
Description Negative Voltage Monitor
Published Aug 29, 2023
Detailed Description FEATURES nn Two Low Voltage Adjustable Inputs (0.5V) nn Accurate UVLO Provides a Third Monitor Input nn Open-Drain RST, ...
Datasheet PDF File LTC2919 PDF File

LTC2919
LTC2919


Overview
FEATURES nn Two Low Voltage Adjustable Inputs (0.
5V) nn Accurate UVLO Provides a Third Monitor Input nn Open-Drain RST, OUT1 and OUT2 Outputs nn Pin Selectable Input Polarity Allows Negative, UV and OV Monitoring nn Guaranteed Threshold Accuracy: ±1.
5% nn 6.
5V Shunt Regulator for High Voltage Operation nn Low 50µA Quiescent Current nn Buffered 1V Reference for Negative Supply Offset nn Input Glitch Rejection nn Adjustable Reset Timeout Period nn Selectable Internal Timeout Saves Components nn Outputs Guaranteed Low with VCC = 0.
5V nn Space Saving 10-Lead 3mm × 2mm DFN and MSOP Packages nn AEC-Q100 Qualified for Automotive Applications APPLICATIONS nn Desktop and Notebook Computers nn Network Servers nn Core, I/O Monitor nn Automotive LTC2919 Precision Triple/Dual Input UV, OV and Negative Voltage Monitor DESCRIPTION The LTC®2919 is a triple/dual input monitor intended for a variety of system monitoring applications.
Polarity selection and a buffered reference output allow the LTC2919 to monitor positive and negative supplies for undervoltage (UV) and overvoltage (OV) conditions.
The two adjustable inputs have a nominal 0.
5V threshold, featuring tight 1.
5% threshold accuracy over the entire operating temperature range.
Glitch filtering ensures outputs operate reliably without false triggering.
An accurate threshold at the VCC pin provides a third input supply monitor for a 2.
5V, 3.
3V or 5V supply.
Two independent output pins indicate the status of each adjustable input.
A third common output provides a configurable reset timeout that may be set by an accurate internal 200ms timer, programmed with an external capacitor, or disabled for a fast response.
A three-state input pin sets the input polarity of each adjustable input without requiring any external components.
The LTC2919 provides a highly versatile, precise, spaceconscious, micropower solution for supply monitoring.
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