LTC2909IDDB-5#TRMPBF

LTC2909 is a dual input monitor intended for a variety of system monitoring applications. Polarity selection and a buffered reference output allow this to monitor positive and negative supplies for undervoltage (UV) and overvoltage (OV) conditions. The two inputs have a nominal 0.5V threshold, featuring tight 1.5% threshold accuracy over the entire operating temperature range. Glitch filtering ensures reliable reset operation without false triggering. The common reset output has a timeout that may use a preset 200ms, be set by an external capacitor or be disabled. A three-state input pin sets the input polarity of each adjustable input without requiring any external components. Typical applications are desktop and notebook computers, handheld devices, network servers, core, I/O monitor, automotive.

• Provides a highly versatile, precise, space conscious, micropower solution for supply monitoring
• Two low voltage adjustable inputs (0.5V)
• Pin selectable input polarity allows negative and 0V monitoring
• Guaranteed threshold accuracy is ±1.5%
• 6.5V shunt regulator for high voltage operation
• Buffered 1V reference for negative supply offset, open-drain active-low RST output
• Adjustable reset timeout period, selectable internal timeout saves components
• VCC UVLO threshold is 4.350 to 4.500V at VCC = 5V
• 8-lead (3mm x 2mm) plastic DFN

附註

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party