LTC4226IUD-2#TRPBF

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The LTC4226IUD-2#TRPBF is a hot-swap controller that provides two channels for in-rush current limiting and fault protection for power supplies connected to a live system. It is a secondary side device that allows for safe supply insertion and removal, using low-power drive circuits and only two external components.

The primary applications for the LTC4226IUD-2#TRPBF include hot-swapping of live loads that are isolated from the power supply by optocouplers. This includes load boards, modules, backplane systems, and systems powered by multiple power sources. Additionally, it can also be used as a power source protection switch in computer systems, distributed power supplies, or other critical applications.

The LTC4226IUD-2#TRPBF is based on the Integral Control Chopping Clamp circuit which utilizes a FEEDBACK signal to adjust the current limit during the first 100us of enable time. This allows for flexibility in the component selection, resulting in lower power consumption and simpler designs.The primary features of the LTC4226IUD-2#TRPBF include:

• Adjustable in-rush current limit
• Accurate current limit with fast response
• Embedded system-level fault protection
• PROGRAMMABLE threshold for monitoring system level fail
• Easy to design and implement

The working principle for the LTC4226IUD-2#TRPBF is simple. It is based on an Integral Control Chopping Clamp circuit which uses a feedback signal to adjust the current limit during the first 100us of enable time. When power is applied, the circuit senses the voltage across the load and then switches the clamp on or off depending on the load current. This allows for accurate current limit setting and fast current limit response. In addition, the LTC4226IUD-2#TRPBF also provides system-level fault protection, by monitoring the output voltage of the power supply and switching off the supply in the event of a system-level fault.

In summary, the LTC4226IUD-2#TRPBF is a hot-swap controller that is ideally suited for load board or module-level fault protection and power source protection switch. It is based on an Integral Control Chopping Clamp circuit, which provides adjustable in-rush current limit, accurate current limit with fast response, and embedded system-level fault protection. It is also easy to design, implement and maintain.

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