MAX704RCSA+T

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Power Management Integrated Circuit (PMIC) can resolve the complexity of managing multiple power domains of integrated circuits. It helps maximize the integration of complex power management architecture in a short space and with low cost. PMIC also significantly reduce power losses, protecting the environment and also saves energy costs. Supervisors are a type of PMICs that are used for digital system reset and power-fail detection. They are digital reset circuits that allow monitoring of system voltage levels and provide an interrupt to digital logic when the voltage falls below a certain level. One example of a supervisor IC is the MAX704RCSA+T.

The MAX704RCSA+T is a supervisor IC with active-low reset, active-low reset-enable, and active-low power-fail output. It functions as a reset supervisor with watchdog timer, reset timer and power-on reset delay. It has an adjustable reset timing and also features precision voltage monitoring capabilities. The MAX704RCSA+T can also be configured with Brown-out protection, which protects circuits when the supply voltage drops below the required levels.

When the input voltage is powered on with a valid logic level, the internal circuitry of the MAX704RCSA+T starts the reset timer. The reset timer has a maximum duration of 1.75s and an endurance of 25ms. When the voltage drops below its rating, the reset output is activated and the internal circuitry of MAX704RCSA+T sets the reset-enable pin low and start the watchdog timer. The watchdog timer has a minimum duration of 200ms. When the watchdog timer\'s timer goes high, the reset output is released and the reset-enable pin is set high. If the voltage levels exceed its allowed threshold, the MAX704RCSA+T will stop the reset output and allow the system to operate.

The application field of MAX704RCSA+T includes embedded systems with real-time operating systems, such as Linux and Android. It also includes applications with battery-backed storage, such as servers, telecommunication systems, and point-of-sale terminals. The maximum power-fail of MAX704RCSA+T is 7V, making it suitable for use in applications that require high precision voltage monitoring. Its low quiescent power consumption of 1µA makes it suitable for applications with low power requirements.

The MAX704RCSA+T employs active-low reset and active-low reset-enable as its main active-low output signals. The reset output is typically used to reset the processor and the reset-enable to inhibit this reset. The active-low power-fail signal is used to indicate a power fault, which can be used to signal a power-on reset signal. When the voltage drops below the threshold levels, the power-fail signal is actuated and the reset output is activated. In addition, the MAX704RCSA+T features an adjustable reset timing, which can be programmed via an internal RSET pin.

In conclusion, the MAX704RCSA+T is a supervisor IC used for digital system reset and power-fail detection. It has a reset timer with a maximum duration of 1.75s and an endurance of 25ms. Its applications include embedded systems with real-time operating systems, such as Linux and Android, applications with battery-backed storage, such as servers, telecommunication systems, and point-of-sale terminals. The MAX704RCSA+T employs active-low reset and active-low reset-enable as its main active-low output signals. It also features an adjustable reset timing, which can be programmed via an internal RSET pin.

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