G5289QE1U

The G5289/A is an integrated, cost-effective, electronic fuse optimized for monitoring output current and input voltage. Connected in series to a 4.5V~40V power-rail, it is capable of protecting the electronic circuitry on its output from overcurrent and overvoltage during output load transient and input voltage transient. If a continuous short-circuit is present on the board, when power is re-applied, G5289/A initially limits the output current to a safe value to lower the power on G5289/A and a thermal protection circuit is integrated as well. There is no degradation on G5289 after short-circuit/thermal protection events and it is reset either by recycling the supply voltage or using the En/Fault pin. For G5289A it will restart after the junction temperature falling below the hysteresis. G5289/A also has a programmable delay to control turn on time.