DC1899A-B

LINEAR TECHNOLOGY DC1899A-B Demonstration Board for LTC4228-2 Dual Ideal Diode and Hot Swap Controller

The demonstration circuit 1899A-B controls two independent power rail circuits each with Hot Swap™ and ideal diode functionality provided by the LTC4228-2 dual ideal diode and Hot Swap controller. The facilitates evaluation of LTC4228 performance in different operation modes such as supply ramp-up, power supply switchover, steady state, and over current faults. Power supply switchover mode can be realized as either an ideal diode or as a prioritizer.

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Power path and inrush current control for redundant supplies

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Low loss replacement for power schottky diodes

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Protects output voltage from input brownouts

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Allows safe hot swapping from a live backplane

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Controls N-Channel MOSFETs

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Limits peak fault current in

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Adjustable current limit with circuit breaker

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Adjustable current limit fault delay

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Smooth switchover without oscillation

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0.5µs ideal diode turn-on and turn-off time

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Status, fault and power good outputs

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Automatic retry after fault