MAX6314US44D2-T

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Power Management Integrated Circuits (PMICs) are semiconductor devices that are used in various electronic systems for efficient power dissipation, regulation, and management. PMICs allow extensive integration of multiple power management functions in small packages, providing a cost-efficient, reliable and easy-to-use solution. PMICs are available in a wide range of configurations, with different functionalities, power ratings, and topologies, from on-board switching power supplies to innovative point-of-load solutions.

Supervisors are a type of PMIC that monitors and manages system power, providing controlled power-on reset, low battery detection and warning, system monitoring, reset generation, and fault protection. Supervisors are ideal for system startup and reset applications, ensuring reliable system initialization and accurate power on/off sequencing. They are designed to monitor voltage levels within the system and provide reset pulses when system conditions exceed the user-defined thresholds.

The MAX6314US44D2-T is a Supervisors PMIC designed for use in a variety of microcontroller, microprocessor, or other embedded system applications. It is an ultra-low supply current reset solution with precision-adjustable reset, power-on reset, and low-battery detection. The device features programmable brown-out reset threshold from 1.14V to 2.93V, adjustable reset output delay from 250ms to 5s, adjustable reset pulse width from 250ms to 2s, adjustable reset retention delay, and two reset-output selectable sources for manual reset.

The MAX6314US44D2-T application field includes overclocking, automation, networking, automotive and industrial, digital home appliances, computer systems, tablets and cellphones and wearable electronics. It features an ultra-low supply current of 5µA (max), a wide operating supply voltage range from 1.14V to 5.5V, an HCMOS or SOT-23-5 package, an adjustable output drive current of up to 2mA, + 2.5% of the RST_SET threshold accuracy, and a wide range of programmable reset function.

The MAX6314US44D2-T working principle is based on the combination of two reference circuits, a voltage divider for setting the reset threshold and one for setting the reset source. The voltage divider has two resistors, R₁ and R₂, connected to the VCC and GND terminals of the IC. The voltage at the voltage divider\'s wiper is determined by the ratio of the two resistors and this voltage is compared to the internal 1.275V reference voltage to set the reset threshold. The reset source is then connected to the RESET_SOURCE input of the IC. The IC will then monitor the voltage of the reset source and generate a reset signal when the voltage drops below the set reset threshold. This reset signal will then trigger the active-low reset output.

In summary, the MAX6314US44D2-T is a Supervisors PMIC that is designed for a variety of applications. It features ultra-low supply current of 5µA (max), an adjustable reset threshold from 1.14V to 2.93V, adjustable reset output delay from 250ms to 5s, adjustable reset pulse width from 250ms to 2s, adjustable reset delay, and two reset-output selectable sources for manual reset. The MAX6314US44D2-T is ideal for applications that require reliable system initialization and accurate power on/off sequencing, such as microcontrollers, microprocessors, or other embedded systems.

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