LTC4214-1IMS#PBF

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The LTC4214-1IMS#PBF is a hot swap controller implementing a power-good indicator and current limit protection for components connected to a powerful circuit. It functions by controlling the hot side local MOSFET switch and protecting the system from inrush current, fault current, and overtemperature conditions. This makes it an excellent choice for power delivery applications where the current is provided safely and reliably and power can be monitored continuously.

The LTC4214-1IMS#PBF is a member of a family of programmable hot swap controllers characterized by current sense-and-control architecture, robust failure protection, low quiescent current, and low standby power. This all-in-one solution helps provide improved performance and economy and is ideally suited for applications including point-of-load converters, AC/DC power supplies, and server power supplies. The output current can be adjusted to the application\'s needs by programming the current-limit threshold via an external resistor.

The LTC4214-1IMS#PBF is specifically designed to protect circuits from hard shorts, soft shorts, over temperature, and current-limit conditions by using an accurate and temperature-compensated current-sense comparator. The current-sense comparator continuously compares the power MOSFET’s current sense voltage with the on-chip voltage reference. If the voltage is greater than the voltage reference, the comparator trips, turning off the power MOSFET and protecting the downstream components. The resulting current limit accurately protects the load from a variety of conditions, including a filtered constant-voltage source transition.

The LTC4214-1IMS#PBF provides user-programmable current limiting and power-good functionality through the device\'s VFB and VCC pins. These pins can be used individually or in combination with the CFG pin to tailor the LTC4214-1IMS#PBF to the user’s system requirements. The device also includes a built-in protection MOSFET, which can be used to protect against hard shorts and grounds, as well as over temperature and current-limit conditions. The LTC4214-1IMS#PBF also features an on-chip power-good indicator to help pinpoint issues with power-up sequencing. In addition, an on-board internal over voltage comparator can be programed to detect a wide range of overvoltage conditions.

In conclusion, the LTC4214-1IMS#PBF is an efficient and reliable controller for hot swap applications. It provides precise current limiting, robust failure protection, low quiescent current and standby power, and features programmable current-limit threshold, power-good indicator, and over voltage protection. This device meets the stringent requirements of server power supplies and other demanding applications. By utilizing this device, engineers can be more confident that their circuit is being protected from inrush current, fault current and other thermal conditions. The LTC4214-1IMS#PBF is an ideal choice for Power Management and Hot Swap application needs.

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