Alpha and Omega Semiconductor has created a 5A electronic fuse IC for sub-power rails in servers. On-resistance is typically 20mΩ. Dubbed AOZ18101DI, they come in 3 x 3mm DFN system-in-packages containing a control IC and back-to-back trench mosfets. The internal mosfets are n-channel, biased using a built-in charge pump. “The eFuse continuously monitors the current flowing ...

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