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LTC2919

Linear Technology
Part Number LTC2919
Manufacturer Linear Technology
Published May 31, 2010
Description Precision Triple/Dual Input UV OV and NegativeVoltage Monitor
Detailed Description LTC2919 Precision Triple/Dual Input UV, OV and Negative Voltage Monitor FEATURES Two Low Voltage Adjustable Inputs (0.5V...
Datasheet PDF File LTC2919 PDF File

LTC2919
LTC2919


Overview
LTC2919 Precision Triple/Dual Input UV, OV and Negative Voltage Monitor FEATURES Two Low Voltage Adjustable Inputs (0.
5V) ■ Accurate UVLO Provides a Third Monitor Input ■ Open-Drain RST, OUT1 and OUT2 Outputs ■ Pin Selectable Input Polarity Allows Negative, UV and OV Monitoring ■ Guaranteed Threshold Accuracy: ±1.
5% www.
DataSheet4U.
com ■ 6.
5V Shunt Regulator for High Voltage Operation ■ Low 50μA Quiescent Current ■ Buffered 1V Reference for Negative Supply Offset ■ Input Glitch Rejection ■ Adjustable Reset Timeout Period ■ Selectable Internal Timeout Saves Components ■ Outputs Guaranteed Low With V CC = 0.
5V ■ Space Saving 10-Lead 3mm × 2mm DFN and MSOP Packages ■ DESCRIPTIO 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.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.
S.
Patents, including 6949965, 7292076.
U APPLICATIO S ■ ■ ■ ■ Desktop and Note...


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