MAX806SESA+

PMIC - Supervisors

The MAX806SESA+ is a low-cost, space-saving PMIC (Power Management IC) supervisor solution from Maxim Integrated. It is a widely used device in a variety of applications as it efficiently provides power supply supervisory and system reset functions for up to three power supplies.

Applications

The MAX806SESA+ is suitable for consumer portable devices, routers, Ethernet base station PCs and network routers, as well as telecom handsets, industrial controllers, and automotive applications. It provides system supervisors for low-power systems such as SoC-based PC products, digital video recorders and home appliances.

Working Principle

The MAX806SESA+’s power-supply supervisory functions monitor power supply conditions, with an adjustable reset threshold that ensures reliable start-up, power sequencing, and system reset. It features an on-chip power MOSFET and an open-drain reset output. It incorporates a fast-transitioning reset-threshold voltage detector, and a programmable reset delay timer that can be used to time-delay reset pulses. It also features a watchdog timer, with an adjustable timeout.

Features

This PMIC has several key features that make it a reliable and effective power supervisor device. It has an adjustable reset output delay timer which is used to extend reset active time periods, a manual reset pull-up resistor and an auto-discharge circuit to ensure fast system reset, an adjustable watchdog timer, and an adjustable reset comparator. The device also features active-low manual reset control, active-low PRDY, and active-low active reset output. It is housed in a 20-pin TQFN package, with a maximum current rating of 66 mA, and a working temperature range of -40°C to +85°C.

Conclusion

The MAX806SESA+ PMIC from Maxim Integrated is an effective and reliable power management IC supervisor that provides practical supervisory functions for many applications. It features an adjustable reset delay timer, manual reset, watchdog timer, and adjustable reset comparators. Additionally, it also offers an open-drain reset output, a programmable power MOSFET, and a fast transitioning reset threshold detector. This device is suitable for a wide range of applications, making it an excellent choice for low-power systems.