MAX709LCUA+T

PMIC - Supervisors: MAX709LCUA+T Application Field and Working Principle

The MAX709LCUA+T supervisor is a Micro Active Reset Supervisor IC that integrates several functions into one package, including reset generation, power-on reset (POR) monitoring, manual reset input, watchdog timer monitoring (WDT) and many other functions. It is a highly reliable device for monitoring and resetting the state of power supplies. This IC is designed to help prevent system malfunctions caused by unexpected power-loss or supply voltage drops.

This IC from Maxim Integrated is suitable for most system designs, including automotive, communication, computing, networking and industrial applications. It helps to create a multi-event interrupt system to guarantee that the system is automatically reset in order to reset the hardware and maintain stability in the event of system crashes, power-fail/, power-drop, etc. It also provides protection against external electric/magnetic disturbances, as well as manual reset (MR) and watch-dog timeout (WDT) interrupts.

The MAX709LCUA+T supervisor IC is a 5V-compatible low-voltage micro-controller (MCU) reset, and watchdog timer monitoring IC. It integrates an oscillator, reset logic and status flag circuit and other blocks into one package, which can be easily configured to fit different system requirements. Its programmable reset timeout ranges from 128ms to 1024 ms, or as high as 4096 ms when terminated. Additionally, it includes an auto-reset feature in case of an unexpected power-loss, which helps to ensure system stability.

The MAX709LCUA+T supervisor IC also provides a watchdog timer monitoring (WDT) and manual reset (MR) input, which can be individually configured for either time-out or system reset functions. It incorporates a MR input terminal which can be configured for user-defined use, such as a factory reset control, movement detection, etc. The WDT feature allows a user-defined time-out duration to be set from 32ms to 32,768ms. In case of an unexpected failure, such as an electrical/magnetic failure, an auto-reset is generated to ensure system reliailbity.

In regards to its operating environment, the MAX709LCUA+T supervisor is capable of operating in a wide temperature range, from -40°C to +105°C. In addition, its reliability is enhanced by the on-chip ESD protection circuitry and 20mA I/O drive capability. The device also features 2KV HBM ESD protection on all I/O terminals and 0.2V undershoot protection against power failure.

Overall, the MAX709LCUA+T is a wide use IC from Maxim Integrated, featuring fully integrated power and reset management, watchdog timer monitoring and manual reset (MR) input. It is suitable for multiple application fields, such as automotive, communication, computing, networking and industrial applications, with a wide operating temperature range and high ESD protection. Its on-chip monitoring and reset generation functions help to ensure reliable power up reset, system crash reset and power-loss reset. Additionally, its watchdog timer and MR input support system-level monitoring and manual reset control for application demands.