MAX706ATESA+

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Power Management Integrated Circuits (PMICs) play a critical role in modern consumer electronics, providing the ability to optimize power and manage resources efficiently. Supervisors are a major sub-category of PMICs and provide extreme accuracy in monitoring supply voltages and generating fault signals in the event of a problem. These are commonly used in enterprise, automotive, and medical applications to monitor, protect, and alert when system conditions have become dangerous or unacceptable. The MAX706ATESA+ is a versatile, high precision supervisor with an integrated, sophisticated power-on reset. It is intended to provide reliable power sequencing and accurate voltage detection, while simultaneously protecting against short circuits and spikes in either the input or output.

The MAX706ATESA+ is comprised of a power-on-reset (POR) circuit, voltage detector, and manual reset logic. On power-up, the POR linearly ramps the output voltage up until the setpoint is reached, then holds the output voltage at a precise level. This eliminates the need for an external resistor-capacitor power-on-reset network, saving PCB area and cost. It also eliminates the "clock glitch" or "power rail bounce" common to many systems due to lack of power sequencing.

The voltage detector has adjustable thresholds from 2V to 7V and a hysteresis of 2.3mV over the entire input range. This provides an excellent tolerance against supply noise and ensures the system is stable during the initial power-up sequence. The manual reset feature allows the system to be externally reset by applying a logic low signal to the MR pin. There is also an enablable auto-reset feature that can reset the system when the internal reset comparators detect an over-voltage, under-voltage, or open-drain issue.

The MAX706ATESA+ has a low quiescent current of 3.2 μA and a wide operating temperature range of -40°C to +85°C, making it suitable for a broad range of applications. This device is the ideal solution for providing reliable power sequencing and monitoring of DC/DC converters, power rails, and system reset for microprocessors and microcontrollers.

The MAX706ATESA+ is a versatile solution for reliable power sequencing and accurate voltage detection in any system. Its adjustable thresholds and integrated power-on-reset circuitry eliminate the need for an external resistor-capacitor network and provide excellent tolerance against supply noise and voltage transients. The wide operating temperature range and low quiescent current make it ideal for use in a broad range of applications.

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