MIC2594-2YM

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TheMIC2594-2YM is a Hot Swap® Controllers (a class of Power Management Integrated Circuit (PMIC) designed to control the insertion of boards and other hot-swappable units into a live system, allowing the load to power up or down without creating an inrush current or interrupting the load. This makes the MIC2594-2YM an ideal solution for applications such as Advanced e-components, Personal Computer (PC) and communication systems, card readers and consumer electronics.

The primary benefit of using the MIC2594-2YM is its ability to reduce in-rush current, or the amount of current that passes through the system when the load is powered up or down. This can be a major issue in applications where long-term power stability is important, as inrush currents can create changes in power which can cause issues with other components, or even damage the system. By utilizing an active current limitation, the MIC2594-2YM can reduce in-rush current to a manageable level, providing better system reliability and longer life.

The MIC2594-2YM also provides a low-cost solution for hot swapping boards, cards and other components. It features a fast 4-phase control scheme with an adjustable current threshold allowing the designer to easily configure the system to meet the needs of their application. In addition, the MIC2594-2YM incorporates over voltage, under voltage and over current protections, limiting the danger of damage to the system or components.

The working principle of the MIC2594-2YM Hot Swap Controller is quite simple. When the voltage of the input PWR exceeds the set value on the OVER_VOLT pin, the device turns on its PWR_OK signal. When the voltage drops below the voltage on the UNDER_VOLT pin, the device turns off its PWR_OK signal. When the voltage is between the two values, the state of the PWR_OK pin is determined by the state of the AUTO_EN pin. If it\'s set high, the MIC2594-2YM will turn on its PWR_OK signal when the current on the OUT pin exceeds the threshold set by the CURRENT_LIMIT pin. If the AUTO_EN pin is set low, the PWR_OK signal is low even when the voltage of the input PWR is within the range.

In conclusion, the MIC2594-2YM hot swap controller is an ideal solution for applications requiring efficient control and protection from inrush currents. With its adjustable current threshold and fast 4-phase control scheme, the MIC2594-2YM provides a low-cost alternative to more expensive solutions, making it a cost-effective choice for hot swap applications.

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