Rugged lightning protection offered by Holt Integrated Circuits for ARINC 429 avionics databus interface
MISSION VIEJO, Calif. – Holt Integrated Circuits in Mission Viejo, Calif., is introducing the HI-35930 ARINC 429 avionics databus interface chip, which provides a drop-in for existing HI-3593 designs that call for lightning protection.
Dual line receivers meet the lightning requirements of specification RTCA/DO160G Section 22 Level 3 pin injection test waveforms without the need for any external components.
Aside from the addition of lightning protection, the device is identical to HI-3593, featuring a SPI host interface, integrated line driver, and on-board DC-DC converter power supply for single-supply 3.3-volt operation.
ARINC 429 avionics databus interface users may capitalize on software compatibility with the previous device in new lightning-protected designs, says Anthony Murray, director of marketing communications at Holt Integrated Circuits.
Related: API for MIL-STD-1553 integrated terminal devices introduced by Holt Integrated Circuits
Other device variants include digital-only options for use with external line receivers and line driver. These devices are for higher rated levels of lightning protection or isolation.
For example HI-35933 enables galvanic isolation utilizing external Holt line receivers (HI-8460) and lightning protection on the transmitter using an external Holt lightning-protected line driver, HI-8597.
For more information contact Holt Integrated Circuits online at www.holtic.com.
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