MIC2587R-2BM

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Power Management IC (PMIC) refers to a type of integrated circuit that combines many power management functions, including voltage regulation, hot swap, current monitoring, and power supply sequencing. Hot Swap Controllers, as a type of PMIC, are specialized for handling the before and after steps of inserting and removing a live hot-plugload from a system. A typical Hot Swap Controller, MIC2587R-2BM, is used for system-level hot swapping and power sequencing in mass storage systems, servers, and telecom enclosures.

The MIC2587R-2BM hot-swap controller solves seven common design issues that were previously managed by multiple discrete components. The features include power supply sequencing, hot-swap and soft-start, redundant supplies, fault reporting, unregulated input voltage, current measurements and load monitoring. This Hot Swap Controller significantly reduces the size and cost of these systems while increasing their performance and reliability.

To ensure that the MIC2587R-2BM Hot Swap Controller\'s flexibility and robustness meets the demands of any application, the device features two on-board power switches (an N-Channel MOSFET and a pFET) and six low-side current-sense amplifiers for monitoring host system power rails, as well as for voltage and current protection. The device\'s soft-start and power sequencing functions are independently configurable via programmable registers from a wide range of inputs. The device also includes a 3.3V/4A LDO for monitoring the incoming voltage. The MIC2587R-2BM also includes integrated on-board thermal protection, short-circuit protection, over-voltage protection, over-current protection, power safety switch control, brown-in/brown-out protection and an adjustable over-current threshold.

The MIC2587R-2BM Hot Swap Controller device\'s work principle is simple. During the connection phase of the Hot Swap Controller, the output voltage is ramped up gradually using a linear or exponential soft-start circuit. During the disconnect phase, the output voltage is ramped down quickly using a fast-drop circuit. The Hot Swap Controller also monitors the voltage and current in the system, and if it detects a fault or problem, it will shut down the load and prevent further harm.

The MIC2587R-2BM Hot Swap Controller is ideal for applications that need to control a large number of high-power devices with potential for an overload. These devices can be inserted and removed from the system with no disruption, making them ideal for mission critical environments. With its integrated fault detection and protection features, the MIC2587R-2BM can guarantee input and output stability and continuity in ever-changing system environments.

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