Pending
Self protecting MOSFETs provide diagnostic feedback
Zetex Semiconductors has introduced a first low side self-protecting MOSFETs in a SOT223 package to provide diagnostic feedback via a separate status pin. The facility aims to further increase the reliability of high voltage automotive and industrial systems. The latest additions to the IntelliFET product range, the ZXMS6002G and ZXMS6003G are 60V, 500mΩ rated N-channel devices particularly well suited to switching loads subject to high in-rush currents, such as lamps, motors and solenoids.
Providing protection against over-temperature, over-current and over-voltage fault conditions, the ZXMS6002G provides analog indication of normal, current limiting and thermal shutdown modes without the need for additional external components. The availability of such diagnostics enables the development of intelligent automatic fault responses.
The ZXMS6003G offers all the functionality of the ZXMS6002G along with a programmable current limit, allowing customisation of the over-current limit to match system needs, enabling users to reduce power dissipation and system cost. The MOSFET’s current limit level is simply configured by connecting an external resistor between the status and in pins.The ZXMS6002/3 devices have been specifically designed to be tolerant of 60V load-dump transients in automotive applications and unprotected 28V rail transients in industrial systems. Both can be driven directly from 5V microcontroller outputs.
Pricing is $0.667 for the ZXMS6002G and $0.75 for the ZXMS6003G in 1000 piece quantities.
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