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.

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 Components
■ Outputs Guaranteed Low With VCC = 0.5V
■ Space Saving 10-Lead 3mm × 2mm DFN and MSOP
Packages

APPLICATIONS

■ Desktop and Notebook Computers
■ Network Servers
■ Core, I/O Monitor
■ Automotive