Cool-Switch, High-Speed Load Disconnect Switch Solutions

Picor Corp.'s Cool-Switch PI2161 and PI2061 is a new electronic circuitbreaker, load disconnect switch solution that address a broad range ofredundant intermediate bus requirements. Targeted for medium to high voltage,high-side redundant bus applications, the Cool-Switch PI2161 is a completehigh-density, full-function electronic load disconnect solution with anintegrated high-speed controller driving a MOSFET possessing a low on-stateresistance of less than 9 milli-Ohms. The PI2161 is 60V rated and featuresan integrated charge pump for narrow-range, high-side 48V bus applications.This thermally enhanced 7 x 8 mm land grid array System-in-Package (SiP)solution is capable of delivering up to 12A over a wide range of operatingtemperatures. The internal MOSFET provides high efficiency and low losscurrent sensing feature that eliminates the need for sensing total load currentresulting in the ability to use low power sense resistors.

The Cool-Switch PI2061 solution is auniversal high-speed, high-side load disconnect controller IC for use withN-channel MOSFETs. Optimized for 12 and 48V systems, the controller ICalso can be used in wide-range systems required to operate during input voltagetransients up to 100V for 100 ms. An internal charge pump eliminates the needfor a separate bias supply for high side applications. The PI2061 controlseither a single MOSFET or paralleled MOSFETs to facilitate operation and protectionat higher current levels. The 3 mm square controller is a low power losssolution with fast dynamic response to fault current conditions. Both solutionsprovide an active low fault flag output for system diagnostics indicating anover-current trip or UVLO fault conditions.

Cool-Switch, High-Speed Load Disconnect Switch Solutions