Automotive qualified gate drive optocoupler for hybrid and electric vehicles

Avago Technologies has announced a new automotive grade optocoupler with extended temperature operation for use in hybrid and electric vehicles at electronica 2010.

The ACPL-38JT 2.5Amp optocoupler is qualified to AEC-Q100 Grade 1 stress test requirements, delivering electrical signal isolation from -40 to 125° C. The power control device incorporates a complete insulated gate bipolar transistor (igbt) driver for signal switching, along with desaturation detection and fault status feedback systems for constant signal protection. Designed for automotive and high temperature industrial applications, Avago says that the device has reinforced insulation for reliable signal isolation. "This newest offering in our R2Coupler family gives Avago the most complete automotive optocoupler portfolio, putting our products in excellent position to grow along with the market for hybrid and electric cars," said Cheng-Dee Lee, business and applications development director for Isolation Products at Avago. "More than 40 automotive companies, including car manufacturers and tier one suppliers, are using or evaluating our R2Coupler isolation products. Avago optocouplers are well known for their reliable signal and high voltage isolation with excellent EMI immunity, with more than 35 years of proven field applications in the military, aerospace, mass transit and industrial markets." During power up, the ACPL-38JT optocoupler's under voltage lock out (uvlo) protection feature protects the igbt from receiving insufficient gate voltage by forcing lower output. The integrated igbt gate driver is designed to increase the performance and reliability of a motor drive without the cost, size and complexity of a discrete design. Available in a 16 lead small outline (SO-16) surface mount package, the device is compliant to UL 1577, IEC/EN/DIN EN 60747-5-2 and CSA industrial safety standards.