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Avago Technologies Adds New Compact Dual-channel Optocouplers

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Avago Technologies, a supplier of analog interface components for wireless, wireline, storage and industrial applications, has announced a new family of dual-channel R2Coupler optocoupler devices, the ACFL-521xT and ACFL-621xT, designed for automotive applications with AECQ100 Grade 1 qualification. The ACFL-521xT is optimized for low power systems supporting data rates up to 1 MBd, and the ACFL-621xT is optimized for high speed systems supporting data rates up to 15 MBd.

Expanding upon previous generation R2Coupler ACPL-KxxT devices, the ACFL-521xT and ACFL-621xT devices have two optocoupler channels internally aligned 180 degrees of each other, thereby providing optimum chip pin-out configuration for bi-directional Tx/Rx data communication design and board layout. Furthermore, the two channels are electrically independent and galvanically isolated, providing an ideal isolated bi-directional power system communication interface. The devices feature 8mm wide creepage and clearance, high dielectric breakdown isolation voltage (VISO) up to 5,000 VRMS for one minute, and high continuous working voltage (VIORM) up to 1,140 VPEAK. The devices are packaged in a compact SSO-12 package comparable to the SSO-8 footprint of previous generation devices.

Product Highlights
"¢    Automotive Qualified per AEC-Q100 Grade 1 Test Guidelines
"¢    Operating Temperature from -40 °C to +125 °C
"¢    Chip Pin-out Optimized for Bi-directional Digital Communications
"¢    Dual-channel Optocouplers in Compact SSO-12 Package Minimizing PCB Board Space and Cost
"¢    20kBd to 1MBd Data Rates with Low Power Consumption (ACFL-521xT)
"¢    10 to 15MBd Data Rates with CMOS Outputs & Propagation Delay < 35 ns (ACFL-621xT)
"¢    UL 1577 Certified for VISO = 5,000 VRMS, 1 Minute Rating
"¢    IEC/EN/DIN EN 60747-5-5 Certified for Reinforced Insulation, VIORM = 1,140 VPEAK

"Built upon a strong foundation with tens of millions of 125°C optocoupler devices shipped into automotive applications, Avago's latest ACFL family of dual-channel optocouplers shall benefit a wide range of high temperature automotive under-the-hood applications," said Cheng-Dee Lee, business development director of Avago's Isolation Products Division. "This new dual-channel optocoupler family is an important addition to Avago's existing portfolio of 125°C optocoupler
solutions, addressing the new automotive trend towards high application voltage of up to 1,000V."


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