MAX6306UK44D2+T Integrated Circuits (ICs)

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The MAX6306UK44D2+T is a PMIC (Power Management IC) supervisor encased in a small 8-pin TDFN package. It has a built-in power on reset (POR) circuit, adjustable POR delay, reset output, and reset assertion during low voltage. The device also offers an input supply voltage monitor with a programmable reset threshold that can be set up to 5.875V. By monitoring the supply voltage, supply transients are automatically detected and a reset is asserted.

The MAX6306UK44D2+T can be used to keep a system in a stable and known state by providing a push button reset to entering low-power mode and restoring the device configuration, providing the stand-by reset and resetting the system on negative power transitions, and resetting the system if the system voltage is out of spec. It can also be used to provide programmable system reset delays for power supply sequencing, board power-up, and so on.

Application Field

The MAX6306UK44D2+T can be used in a wide range of applications, such as:

• Networking equipment (switches, routers, etc.)
• Telecommunications infrastructure
• Data and storage (SSD, RAID) systems
• Embedded PCs (PCI/104, PCIe/104, etc.)
• Set-top boxes, game consoles, and other consumer electronics
• Industrial automation and control systems

Working Principle

The MAX6306UK44D2+T supervisor uses an integrated voltage monitor to detect system power supply voltage. It can be connected to an input supply voltage to detect system power supply conditions and detect supply transients. When a transient is detected, the internal blocks detect and reset the microcontroller or other components.

The POR circuit has two stages. The first stage is a reset delay and the second stage is a reset assertion. The reset delay can be programmed using an external capacitor and resistor connected to the reset pin. The reset pin can also be enabled or disabled using an enable/disable pin, allowing the user to control when the reset is executed. The reset assertion stage is triggered by a supply voltage that goes higher or lower than the programmable reset threshold, and this can be used as a hardware reset.

The MAX6306UK44D2+T also has an active-low reset output that is asserted when the reset is triggered. The MAX6306UK44D2+T also has a built-in low voltage reset that is triggered when the supply voltage drops below the programmable reset threshold.

The MAX6306UK44D2+T also includes an internal watchdog circuit that can be configured to generate a reset if the supply voltage is outside the specified range, or if the reset pin is not asserted within the specified time period.

In summary, the MAX6306UK44D2+T is a versatile PMIC supervisor designed to monitor the input supply voltage, detect supply transients, and provide programmable system reset delays. It can be used in a wide range of applications, such as networking equipment, embedded PCs, set-top boxes, game consoles, and industrial automation and control systems.

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