MAX6303CSA+

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	2.8 ms Minimum
Voltage - Threshold:	Adjustable/Selectable
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	MAX6303

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Introduction:

The MAX6303CSA+ is a precision handler of reset signals which are used to detect and respond to power failure, power interruptions and power supply sequencing events. It is part of the PMIC (Power Management Integrated Circuit) Supervisors category and forms a key component of power-on reset circuits in various products and appliances.

Application Field:

The MAX6303CSA+ can be used in both analog and digital systems, providing a reliable means of handling reset signals and providing system control in areas such as micro-controllers, digital signal processors (DSPs), communication and networking systems, graphics processing units (GPUs) and peripherals. Powering systems that expose their components to electomagnetic fields, such as X-Ray machine, and high-voltage transmission lines, the MAX6303CSA+ can be used in electrical systems where the resets are required due to events such as microcontroller reset error, in order to prevent system failures.Utilising patented reset signal timing control and event sequence detection, the MAX6303CSA+ can detect reset events caused by power-on conditions, power supply voltage drops or relevant external signals. This makes it well-suited to temperature-variable or high-accuracy operating conditions.

Working Principle:

The MAX6303CSA+ reset circuit monitor IC will respond to external and internal reset conditions by producing an active low reset output signal to the peripherals. This will cause the microcontrollers to reset, enabling the system to continue operating as normal.The MAX6303CSA+ will monitor the following sources: supply voltage (VCC), reference voltage (VREF) and reset input (RESIN). When the power-up reset is triggered and the VCC reaches the preset trough value, a reset signal is sent to the RESOUT pin and the device will be placed in reset mode. The MAX6303CSA+ also contains an internal fused reset. When the VCC and VREF pins match to a preset level, the RESET signal will be sent to RESOUT. Due to the incorporation of hysteretic scaling, this will detect any power failures and reset the peripheral system.The MAX6303CSA+ is designed to operate within the limits of 3V to 24V and is available in three package sizes; 0.8mm, 1.2mm, and 2mm.

Conclusion:

The MAX6303CSA+ reset signal handler is an important part of the PMIC Supervisors, providing control and event sequencing detection for reset signals in systems that operate in temperature-variable and high-accuracy environments. Utilising technology such as hysteretic scaling, the MAX6303CSA+ is a reliable, versatile solution for detecting and responding to a variety of power failures, power interruptions and power supply sequencing events.

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