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Sensors/MEMS??

Diode arrays offer ESD protection for up to 30kV spikes

Posted: 11 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:TVS diodes? CAN TVS diode arrays? CAN transceiver?

Infineon Technologies AG developed a family of transient voltage suppressor (TVS) diode arrays intended to protect CAN automotive control networks and industrial bus systems from voltage spikes as high as 30kV. The dual-channel, bidirectional and uni-directional ESD24V diode arrays are available in the industry-standard SOT23 package. The CAN TVS diode arrays suited to use with applications for powertrain, safety and comfort management systems.

An automotive CAN transceiver must be able to survive the high-energy transients produced by environmental events including load dump, inductive load switching, relay-contact chatter and ignition-system noise. The TVS diodes in the ESD24V arrays have a fast turn-on time and limit the overvoltage to a safe value, absorbing the transient energy to prevent damage to the CAN transceiver and reducing the incidence of field failures.

Features of the ESD24V arrays, which have a maximum operating voltage of 24V, include an ESD contact discharge rating of 30kV per diode, a peak pulse current of 5 A, peak pulse power of 180W and a low reverse current of less than 10nA. Their performance meets the specifications of the IEC61000-4-2, IEC61000-4-4 and IEC61000-4-5 standards, and are qualified according AEC Q101.

The devices are available now. Pricing starts at 0.08 cents each in 10,000-piece quantities.

- Emily Gleason
eeProductCenter




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