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Active-Semi is providing a Family of eFuse products with active power loss protection and autonomous storage capacitor health monitoring. In the event of a power loss during write cycles in SSDs it is important to detect the eminent power loss and actively signal this to the controller and allow a completion of data storage to not loose vital information. To ensure that the provided storage capacitors are capable of providing this function the ACT491x products periodically conduct capacitor health screening.

Parameter Operating Input Range eFuse Abs Max Voltage eFuse FET Rds(on) Storage Cap Voltage Maximum Input Current Buck FET RDS(on) (HS & LS) Autonomous Health Monitoring Package
ACT4910 2.7V ~ 18V 24V 17mΩ 5V ~ 36V 10A 45 mΩ & 28 mΩ Yes 5X5 mm QFN28
ACT4911 2.7V ~ 8V 10V 17mΩ 5V ~ 36V 10A 45 mΩ & 28 mΩ Yes 5X5 mm QFN28