eFuse speeds overcurrent detection
The KTS1630 5-A eFuse from Kinetic Technologies protects sensitive electronics against overcurrent, short circuits, and thermal faults. It is designed for consumer and industrial systems operating from 5-V and 12-V power rails, helping improve system safety and reliability. By detecting overcurrent conditions typically within 100 ns, the device can isolate faults before they can damage downstream circuitry.
An integrated MOSFET with a typical on-resistance of 31 mΩ from VIN to VOUT helps reduce conduction losses while supporting operation across a 4.5-V to 18-V input range, with a 20-V absolute maximum rating at VIN. The KTS1630’s adjustable 1-A to 5-A current limit allows designers to set the protection threshold for specific loads rather than relying on a fixed current-limit threshold. The eFuse also includes a dedicated control output for an external reverse-blocking MOSFET that prevents reverse current when the input supply is removed or the output voltage exceeds VIN.
A programmable output slew rate controls inrush current during startup, helping prevent input-supply droop, connector stress, and unintended system resets when large capacitive loads are connected.
Supplied in 10-pin, 3×3-mm VDFN packages, the eFuse is available in both auto-retry and latched-off versions.
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