MIC2586R-1YM

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The MIC2586R-1YM is a P/N/H-Channel hot swap controller from Micrel. It is part of the company’s “Hot Swap Controllers” series, specifically designed to optimize power management functions in power supplies, telecommunications and computer systems. With a current ratings up to 42 V, slew rate as low as 10 mV/μs, and input voltages as high as 35 V, it is a versatile and powerful IC for hot swapping applications.

The working principle of the MIC2586R-1YM can be explained in five steps. Firstly, during initial startup, a supervisor IC senses an input voltage above a certain threshold and enables the hot swap controller. Secondly, the output from the hot swap controller is multiplexed to control a P-MOSFET power control device. Thirdly, the hot swap controller is responsible for over-voltage, over-current, and temperature protection. Fourthly, the P-MOSFET power control device drives the power supply output across the connected PCI Express connector. Lastly, the hot swap controller maintains a safe and constant output voltage across the board.

The MIC2586R-1YM is ideal for applications that require power sequencing, over-voltage protection, and fast current-limiting. Common applications include telecom/datacom switch/router modules, data storage and networking systems, embedded systems, and medical equipment. It works in single-voltage and dual-voltage systems that supply either one or two voltage rails. The MIC2586R-1YM is also used to reduce electromagnetic interference, as it reduces EMI noise during the startup and hot swapping process. The controller is therefore compliant with the latest standards and regulations, including the JEDEC standard for electronic components.

Hardware designers can benefit from the MIC2586R-1YM in various ways. It supports up to 42V operating currents, and can be designed for fast current-limit protection with adjustable current limits. Designers can also optimize the slew rate and control the output voltage from 0V to 5.5V. Additionally, the device has programmable debounce time that helps reduce power dissipation on the power supply output. Furthermore, the MIC2586R-1YM provides flexible control of the power switch on time and off time, and features a thermal shutdown mode which shuts off the device if the system temperature exceeds a predetermined limit. Additionally, the device features an open-drain fault output and Reset pins for extra safety.

The MIC2586R-1YM is a feature-rich and highly efficient hot swap controller. It is designed for a wide range of applications, including telecom/datacom modules and embedded systems. With its slew rate control, current limiting, and thermal shutdown features, it ensures system stability and reduces power dissipation. The device is compliant with the latest standards and regulations, including the JEDEC standard.

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