Due to high-reliability requirements for datacenter and telecom infrastructure products, all critical power rails are monitored and protected by an eFuse device to protect the main power bus from interruption due to abnormal load under fault conditions. AOS’ eFuse continuously monitors the current flowing through the power switch.
If the current exceeds the set limit, the switch will limit the current to the maximum allowed. If the high current load persists, the switch will eventually turn off, protecting downstream loads from damage, thus acting as a fuse.
To quote Tuesday’s news release, “The new eFuse is constructed with AOS’ advanced co-packaging technology that combines a high-performance IC with protection features and the company’s latest high SOA Trench MOSFET.
The AOZ17517QI series’ MOSFET offers low RDS(ON) (0.65mohm) that isolates the load from the input bus when the eFuse is off.”
AOSL shares jumped 46 cents, or 1.8%, to $25.74.
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