DESCRIPTION
The LTC®2909 is a dual input monitor intended for a variety of system monitoring applications. Polarity selection and a buffered reference output allow the LTC2909 to monitor positive and negative supplies for undervoltage (UV) and overvoltage (OV) conditions.

FEATURES
■ Two Low Voltage Adjustable Inputs (0.5V)
■ Pin Selectable Input Polarity Allows Negative 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
■ Open-Drain ⎯R⎯S⎯T Output
■ Accurate UVLO for 2.5V, 3.3V, 5V Systems
■ Ultralow Voltage Reset: VCC = 0.5V Guaranteed
■ Space Saving 8-Lead TSOT-23 and 3mm × 2mm DFN Packages

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