LTC4217IDHC-12#PBF

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PMIC - Hot Swap Controllers are integrated circuits that provide control of a hot-swappable pin field. The LTC4217IDHC-12#PBF is one such device enabling the ability to safely introduce and power on a load when connecting or disconnecting a live battery or power supply. This article will explain the application fields and principle of work of the LTC4217IDHC-12#PBF.

Application Fields

The LTC4217IDHC-12#PBF is an ideal choice for applications where voltage and current levels exceed the capabilities of alternative solutions, such as solid state switches, fuses, and surge protection devices. It offers a full range of protection features including over-voltage and over-current protection, diagnostic reporting, and unlimited power sequencing. These features make it ideal for applications where high-current and high-voltage switching is required, such as telecommunications networks, computer power supplies, and power over Ethernet (PoE) systems.

The device is also suitable for use in data center applications, where it can be used to provide load balancing in a rack environment. By alternately connecting and disconnecting the power supply to the rack, it is possible to equalize power consumption across servers in the same rack. Additionally, it can be used for efficient power transmission and reception, allowing for simultaneous powering of multiple loads from a single source.

Working Principle

The LTC4217IDHC-12#PBF is a Polar Power Control Switch that uses a bi-directional buck-boost switching topology. It has a wide range of operating voltages, including up to 55V, while offering low resistance and on-resistance. In addition, it features adjustable current limit, integrated over-voltage protection, and low power consumption.

The device works by measuring the input voltage, and then adjusting the output voltage accordingly. When the current drawn by the load exceeds the pre-set level, the device turns off the switch. In addition, it has an internal soft-start feature to prevent inrush currents.

The LTC4217IDHC-12#PBF is designed to improve the ability of hot-swappable systems to handle highly variable loads. It delivers reliable protection, plus fast and accurate over-current and over-voltage detection. This ensures that minimal current flows when the device is connected, which helps to optimize the operation of the system and reduce losses.

Conclusion

The LTC4217IDHC-12#PBF is a hot swap controller that is designed to provide reliable protection when connecting or disconnecting a live battery or power supply. It is ideal for applications such as telecommunications networks, computer power supplies, and power over Ethernet. Additionally, it offers adjustable current limit, integrated over-voltage protection, and low power consumption.

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