LT1641IS8#TRPBF

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LT1641IS8#TRPBF is a hot swap power controller from Linear Technology. It is ideal for applications requiring hot swap capability, and protects the load from excessive voltages and current while minimizing the power dissipation. LT1641IS8#TRPBF is designed to meet the needs of high power, high voltage, and hot swap applications by providing low R_DS(ON) MOSFETs in a four to eight channel package.

Application Field

The LT1641IS8#TRPBF is suitable for applications such as telecom, industrial and consumer applications including servers, storage, portable PCs and peripherals. It is also applicable in automotive applications, providing efficient and reliable power management for in-vehicle systems.

The 4- and 8-channel hot swap controllers offer an adjustable UV and UVLO thresholds, programmable current limits, thermal shutdown and current sense amplifiers for galvanically isolated circuits. The components feature accurate current sensing with low on-resistance MOSFETs and low voltage drop, high- side and low-side clamping of transients, dual-mode (continuous or thermal) current limiting and fail-safe protection during hot insertion.

Working Principle

The LT1641IS8#TRPBF works by connecting an external MOSFET at the point of load and limiting the amount of current flow to the load. As a result, it protects the load from excessive voltages, over-temperature, and decreased system efficiency.

In addition, this hot swap controller has an adjustable UV and UVLO threshold, as well as a programmable current limit. This allows the user to control the current demands placed upon the system, ensuring optimal power performance.

In the event of over-temperature conditions, the LT1641IS8#TRPBF can detect the condition and shut down the MOSFETs, protecting the system from further damage.

Each controller also includes current sense amplifiers for galvanically isolated circuits, allowing the user to easily monitor system performance. As the current sensing capability is quite accurate, this allows the user to better assess the health of the system.

The LT1641IS8#TRPBF is a cost effective solution for hot swap applications. It provides an easy to use, reliable and secure method for protection of the load from excessive voltage and current demands. Additionally, it offers accurate current sensing and dual-mode (continuous or thermal) current limitation.

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