LT4250LIS8#PBF

LINEAR TECHNOLOGY  LT4250LIS8#PBF  芯片, 热插拔控制器, 内部开关, 8SOIC

The is a 8-pin negative 48V Hot Swap Controller allows a board to be safely inserted and removed from a live backplane. Inrush current is limited to a programmable value by controlling the gate voltage of an external N-channel pass transistor. The pass transistor is turned off if the input voltage is less than the programmable under voltage threshold or greater than the overvoltage threshold. A programmable current limit protects the system against shorts. After a 500µs timeout the current limit activates the electronic circuit breaker. The PWRGD signal can be used to directly enable a power module. The LT4250L is designed for modules with a low enable input.

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Circuit breaker immunity to voltage steps and current spikes

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Programmable inrush and short-circuit current limits

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Programmable overvoltage protection

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Programmable undervoltage lockout

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Power good control output

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Bell-core compatible on/off threshold