Keywords
Citation
(2005), "Agilent Technologies introduces industry's first military-specification hermetic IGBT/MOSFET gate-drive optocouplers", Microelectronics International, Vol. 22 No. 1. https://doi.org/10.1108/mi.2005.21822aad.003
Publisher
:Emerald Group Publishing Limited
Copyright © 2005, Emerald Group Publishing Limited
Agilent Technologies introduces industry's first military-specification hermetic IGBT/MOSFET gate-drive optocouplers
Agilent Technologies introduces industry's first military-specification hermetic IGBT/MOSFET gate-drive optocouplers
Keywords: Printed-circuit boards
Single-Chip solution saves valuable board space; commercial-grade, Class H products available.
Agilent Technologies have introduced the industry's first military-specified hermetically sealed, gate-drive optocouplers, designed for motor- control inverter and uninterruptible power-supply applications in critical defense and aerospace equipment. The devices are supplied in rugged, hermetically sealed ceramic packages capable of operation over the full military temperature range of 55 to +125°C, and storage from 65 to +150°C.
“Until now, mil-standard hermetically sealed gate-drive optocouplers were not available”, said Tze Siong Chong, Vice-President and General Manager of Agilent's Isolation Products Division. “Our new optocouplers save board space by eliminating the need to combine an HVIC with a separate isolation device to create a total IGBT/MOSFET gate- drive solution.”
The optocouplers may be purchased as either commercial-grade products, with full MIL-PRF-38534 Class H testing, or from the Defense Supply Center Columbus (DSCC) Standard Microcircuit Drawings (SMDs).
Agilent's HCPL-5120 (commercial)/ HCPL-5121 (Class H) and HCPL- 5150 (commercial)/HCPL-5151 (Class H) gate-drive optocouplers are supplied in 8-pin, 300-mil hermetic dual-inline packages with a variety of lead forms suitable for through-hole and surface mounting. All are manufactured and tested on a MIL-PRF-38534 certified line and are included in the DSCC Qualified Manufacturers List, QML- 38534, for hybrid microcircuits.
The HCPL-512x and HCPL-515x devices contain a GaAsP infrared LED optically coupled to an integrated circuit with a power output stage. The high operating voltage range of the output stage provides the drive voltages required by gate-controlled devices. The voltage and current supplied by these optocouplers makes them ideally suited for directly driving IGBTs with ratings up to 1,200 V/50 A (HCPL- 515x) and up to 1,200 V/100 A (HCPL-512x). For IGBTs with higher ratings, these devices can be used to drive a discrete power stage, which drives the IGBT gate. The optocouplers also feature under-voltage lockout protection (UVLO) with hysteresis to prevent damage to the motor drive.
Availability
The commercial versions of the Agilent hermetic gate-drive optocouplers are available now through Agilent's worldwide distribution partners. More information is available at: www.agilent.com/view/optocouplersM