MAX34561

www.DataSheet.co.kr 19-5621; Rev 0; 11/10 12V/5V Hot-Plug Switch General Description The MAX34561 is a dual, self-contained, hot-plug switch intended to be used on +12V and +5V power rails to limit through current and to control the power-up output-voltage ramp. The device contains two on-board n-channel power MOSFETs that are actively closed-loop controlled to ensure that an adjustable current limit is not exceeded. The maximum allowable current through the device is adjusted by external resistors connected between the LOAD and ILIM pins. The device can control the power-up output-voltage ramp. Capacitors connected to the VRAMP pins set the desired voltage-ramp rate. The output voltages are unconditionally clamped to keep input overvoltage stresses from harming the load. The device also contains adjustable power-up timers. Capacitors connected to the TIMER pins determine how long after power-on reset (POR) the device should wait before starting to apply power to the loads. The TIMER pins can be driven with a digital logic output to create a device-enable function. The device contains an on-board temperature sensor with hysteresis. If operating conditions cause the device to exceed an internal thermal limit, the device either unconditionally shuts down and latches off awaiting a POR, or waits until the device has cooled by the hysteresis amount and then restarts. +12V and +5V Power Rails S Dual Version of the DS4560 S On-Board Power MOSFETs (68mI and 43mI) S No High-Powe...