Holt Validates Latest Discrete-to-Digital Sensor with Built-In Lightning Protection

Tuesday, January 20, 2015

Mission Viejo, CA (January 20, 2015) - Holt Integrated Circuits today announced compliance of its latest discrete-to-digital sensor, HI-8429, with the lightning requirements of RTCA/DO-160G, Section 22, Level 3 Pin Injection Test Waveform Set A (3 & 4), Set B (3 & 5A) and Set Z (3 & 5B), using no additional external components. Validation was carried out by an independent ISO accredited lab using industry standard procedures and practices. A test report from D.L.S. Electronic Systems, Inc. is available.

The RTCA/DO-160G specification provides a standardized test methodology which is accepted in the avionics industry as the gold standard for environmental testing of airborne equipment. Compliance ensures Holt devices operate reliably in a broad variety of avionics applications with tough environmental requirements.

The HI-8429 is an 8-channel discrete-to-digital sensor with programmable sense channels and internal lightning protection. The sense input thresholds are programmable from 2V to 12V via a 10MHz SPI bus. The device is compliant with Airbus ABD0100H specification and has inputs individually configurable as either GND/Open or Supply/Open (28V/Open). An optional debounce circuit ensures sensor outputs respond correctly to mechanical sensor inputs. In addition, a sensor output interrupt pin alerts the system to a change in sensor input, avoiding constant polling via SPI to check status.

“Integration of lightning protection provides our customers with significant board space saving, especially on a multi-channel product which requires separate protection on individual inputs,” said Anthony Murray, Director of Marketing Communications at Holt. “This robust DO-254 certifiable device meets the challenges for next generation composite aircraft”.

To request information on Holt’s ARINC 429, CAN, MIL-STD-1553 and other product lines, readers should contact Holt at (949) 859-8800, by e-mail at info@holtic.com, or visit the Holt website at www.holtic.com.




About Holt Integrated Circuits

Located in Mission Viejo, CA, Holt Integrated Circuits is a major supplier of ICs for avionics and military data bus and display applications. The company’s products are specified by more than 400 manufacturers worldwide and are employed in flight control, navigation, engine management, communications, safety equipment, and in-flight entertainment systems.

Holt’s range of ICs supporting the ARINC 429 standard is the widest in the industry and its MIL-STD-1553 transceivers are recognized as the industry’s smallest, having the lowest power consumption. In addition, Holt MIL-STD-1553 integrated terminals offer the most compact, cost effective solution available, integrating protocol, transceiver and transformers in a single 15x15mm package. Other data bus products include ARINC 717, CAN (ARINC 825), RS-485/422 and analog switches. Select products are available to DSCC SMD specifications. Holt also offers product compliant to the European Union "RoHS Directive 002/95/EC".

Holt Integrated Circuits is ISO 9001:2008 registered and is a STACK certified supplier and recipient of the STACK International 2012 Gold Supplier Award.



About DLS Electronic Systems

For 30 years, D.L.S., has provided EMC Product Safety and Environmental testing and consulting services, specializing in RTCA, Mil STD, FCC, CE, IEC, ETSI, ACA, VCCI, CCC, UL and other global compliance programs. D.L.S. is a Notified Body for the EMC and RTTE Directives. In addition, D.L.S. is a certified UL testing lab, offering formal compliance testing and consulting to UL requirements. D.L.S.'s product safety group provides testing services for Low Voltage, Medical Device, and Machinery Directives. D.L.S. offers MIL 810 and RTCA DO 160 and other environmental testing services as well. Twice a year D.L.S. provides a four-day introductory EMC design seminar with a hands-on workshop where students design a real life product to meet compliance regulations.









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