MIC2593-2BTQ

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The MIC2593-2BTQ is a hot swap controller from Micrel Inc. It is a type of power management integrated circuit (PMIC) specifically designed for use in hot-swap applications. It offers superior protection for both source and load in power supplies and isolated power applications, and provides a simple but highly effective solution for hot-swapping up to ±3.3V devices into the system. The device offers two channels of electronic "hot-swapping" to protect the system from voltage shorts or overcurrent during device insertion and replacement.

The MIC2593-2BTQ has an overcurrent protection / fault signal architecture which can be used to handle hot-swapping and/or active current limiting. When the device is used to handle hot-swapping, the MIC2593-2BTQ provides a non-isolated solution that is suitable for all load voltages up to ±3.3V. The device has a wide operating temperature range of -40°C to +85°C, making it suitable for use in a variety of environments.

The MIC2593-2BTQ also provides two fault outputs (F1 and F2) to indicate overcurrent/overvoltage conditions. These can be used to enable circuit shut-down when necessary. The device includes an adjustable current limit that can be set up to 3A with a low (1μA) quiescent current. This makes the device ideal for use in portable applications, where continuous current monitoring is necessary as well as low power consumption. Additionally, the device features transient surge protection and adjustable over-voltage protection.

In terms of operation, the MIC2593-2BTQ works by monitoring voltage across its two pins - V_IN and V_OUT. Under normal operations, the device will enable the device, allowing it to source and sink current up to 3A. If a fault condition is detected, either through the voltage sensed between the V_IN and V_OUT pins or through an external control signal, the device will shut down and turn off the current flow, protecting both the source and load from damage. This makes the MIC2593-2BTQ an ideal solution for hot swapping operations, as it helps prevent voltage shorts and overcurrent situations.

Additionally, the device offers low standby power consumption, allowing it to remain in a low-power state while not in use. This helps to increase overall system efficiency, as the device only consumes power when it is actively needed. The MIC2593-2BTQ is available in a surface-mount 7-pin ceramic Dual Inline Package (DIP) package which is RoHS compliant and provides excellent thermal performance.

In conclusion, the MIC2593-2BTQ is a hot swap controller designed for use in hot swapping operations up to ±3.3V. It offers excellent overcurrent protection, low standby power consumption, and adjustable current limit up to 3A. Additionally, it includes an adjustable overvoltage protection, transient surge protection and two fault signals for efficient system shut down. The device is available in a surface-mount 7-pin ceramic DIP package, making it ideal for many applications.

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