MAX6339IUT-T

The MAX6339IUT-T is a precision quad voltage monitor with microprocessor supervisory reset timing, manufactured by Analog Devices / Maxim Integrated. This device can monitor up to four system supply voltages without external components, asserting a single active-low reset if any supply voltage falls below its preset threshold. It offers factory-trimmed threshold voltage options for common supplies like +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, and -5.0V, with -5% and/or -10% tolerances. User-adjustable threshold options are also available.

The MAX6339 features a low 55µA supply current and an open-drain RESET output with a 10µA internal pullup. The reset timeout period is a minimum of 140ms after all voltages are above their selected thresholds. The output remains valid as long as either IN1 or IN2 input voltage remains above 1V. This device is immune to short monitored supply transients and is guaranteed to operate over an extended temperature range of -40°C to +85°C.

Designed for applications such as telecommunications, high-end printers, desktop and network computers, data storage equipment, networking equipment, industrial equipment, and set-top boxes, the MAX6339 is available in a compact 6-pin SOT-23 package, making it suitable for space-constrained designs. Its integration of multiple voltage monitoring functions reduces system size and component count while improving reliability.