DESCRIPTION
The LTC®1726 is a triple supply monitor and microprocessor supervisory circuit with adjustable reset and watchdog functions intended for systems with multiple supply voltages. The part has a common open-drain reset output with an adjustable delay. The reset and watchdog time-out periods are both adjustable using external capacitors.
FEATURES
â– Monitors Three Inputs Simultaneously
LTC1726-5: 5V, 3.3V and ADJ
LTC1726-2.5: 2.5V, 3.3V and ADJ
■±1.5% Threshold Accuracy Over Temperature
■Low Supply Current: 16µA Typ
â– Adjustable Reset Timeout
â– Adjustable Watchdog Timeout
â– Active Low Open-Drain Reset Output
â– Power Supply Glitch Immunity
■Guaranteed RESET for VCC3 ≥ 1V or VCC25/VCC5 ≥ 1V
â– MS8 and SO-8 Packages
APPLICATIONS
â– Desktop Computers
â– Notebook Computers
â– Intelligent Instruments
â– Portable Battery-Powered Equipment
â– Network Servers