MAX6795TPLD1+T

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MAX6795TPLD1+T is an advanced supervisor device designed by Maxim Integrated. It is part of their PMIC (power management IC) supervisors series, and it can provide single chip reset and power-up/power-down management for a wide range of computing, embedded, automotive and industrial applications. The MAX6795TPLD1+T is a robust, low power and low cost alternative to discrete supervisors and is an ideal choice for system-critical applications.

The MAX6795TPLD1+T is suitable for a variety of application fields, including but not limited to embedded systems, automotive systems, wired and wireless communications, solid-state drives (SSDs), LED lighting, industrial systems and more. It is designed to provide excellent reset and supervisory circuit performance, superior reset accuracy (using its on-chip temperature-compensated oscillator) and noise immunity, with a guaranteed minimum reset delay of less than 50 µs. The device is also rated to operate in a wide temperature range of -40 to +125 °C, and uses an advanced low power CMOS process to reduce dynamic and static current consumption.

The MAX6795TPLD1+T consists of a single-chip supervisor with open-drain output and an on-chip resistor divider for supply voltage monitoring, as well as two Comparator inputs for input signal monitoring. The output (open-drain) is held high until the voltage at the Supervisory input deviates from the voltage at the Threshold input by more than the trip threshold. When the reset signal is active, the system controller can be held in reset until the supervisory circuit is satisfied. In order to ensure reliable reset operation, the MAX6795TPLD1+T offers a wide power-supply voltage range.}

Features include a guaranteed maximum tPLH/tPHL of 75/100µs with a typical delay of 50µs, programmable reset and watchdog timeout delays, and an integrated power supply monitor circuit with external resistor divider selection. This device offers an incredibly wide range of reset and supervisory functions with an extremely low power footprint and is the perfect solution for system-critical applications.

The working principle of the MAX6795TPLD1+T is quite simple. It consists of a comparator which compares the voltage at the supervisory input against the voltage at the threshold input. If the difference between the two is greater than the trip threshold, then the output (open-drain) is held low and the system controller is held in reset. The output will remain low until the voltages at the inputs return to their nominal levels. The timer circuit then determines how long the reset signal will remain low before it is released and the system controller can begin running again.

The MAX6795TPLD1+T is a robust, low-cost and low-power alternative to discrete reset and supervisory circuits. It is an ideal choice for system-critical applications, offering superior performance, superior reset accuracy and noise immunity, in a wide temperature range and with a guaranteed minimum reset delay of 50 µs. The integrated power supply monitor circuit with external resistor selection makes it an ideal choice for a range of applications, and the low power operation ensures reliable supervisory operation without wasting power.

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