LTC1726ES8-5#TR - Triple Supply Monitor and Microprocessor Supervisor

The LTC1726ES8-5#TR is a precision triple supply monitor and microprocessor supervisory circuit designed by Linear Technology, now part of Analog Devices. This compact and reliable integrated circuit (IC) is engineered to monitor power supplies in microprocessor systems, providing a high level of system stability and reliability. It is particularly suitable for systems with multiple supply voltages that require simultaneous monitoring.

The LTC1726ES8-5#TR features three voltage detectors, each tailored to monitor +5V, +3.3V, and a third adjustable voltage. This adjustable input can be set to monitor a voltage down to 0.5V using an external resistive divider. The device ensures that all the monitored supply voltages are stable before enabling the microprocessor to start up, thereby preventing system errors and data corruption during power-up, power-down, or brown-out conditions.

One of the key features of the LTC1726ES8-5#TR is its tight accuracy specifications for the reset threshold voltages, with a ±1.5% threshold accuracy over the entire operating temperature range. This precision ensures reliable reset operation without false triggering. The product also includes a manual reset input, allowing for a system reset to be initiated by external hardware or software events.

The IC offers a 200ms reset timeout period after all voltages have been detected to be within their thresholds, providing a stable system reset. Furthermore, the LTC1726ES8-5#TR has a low supply current of 30µA, which makes it an energy-efficient choice for battery-powered applications.

The LTC1726ES8-5#TR is available in an 8-lead SOIC package and is characterized for operation from -40°C to 85°C, catering to a wide range of industrial applications. The part number suffix '#TR' indicates that the product is provided in tape and reel packaging, which is ideal for automated manufacturing processes.

In summary, the LTC1726ES8-5#TR is a versatile, precise, and efficient solution for systems that require multiple voltage monitoring and stringent processor supervision to ensure safe and predictable operation.