LTC2919 Datasheet | Linear Technology

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% .. - 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 ponents - 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 mon 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 ponents. 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...