LTC2909CTS8-2.5#TRMPBF

LTC2909CTS8-2.5#TRMPBF 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. 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. A third fixed-threshold UVLO monitor on the part’s VCC (also 1.5% accuracy) is available for standard logic supplies. 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. Applications include desktop and notebook computers, handheld devices, network servers, core, I/O monitor, automotive.

• Two low voltage adjustable inputs (0.5V), ultralow voltage reset: VCC = 0.5V guaranteed
• Pin selectable input polarity allows negative and OV monitoring
• Guaranteed threshold accuracy: ±1.5%, 6.5V shunt regulator for high voltage operation
• Buffered 1V reference for negative supply offset, input glitch rejection
• Adjustable reset timeout period, selectable internal timeout saves components
• Open-drain active-low RST output, VCC input current is 50μA typical at (2.175 < VCC < 6V)
• UVLO hysteresis is 0.7% typical at (TMR = VCC, TA = 25°C)
• TMR pull-down current is 2.1μA typical at (VTMR = 1V)
• Operating temperature range from 0°C to 70°C
• 8-lead plastic TSOT-2 package

Notes

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