Opto-Electronics


Optocouplers for IPM interfaces

25 January 2012 Opto-Electronics

Avago Technologies released three high-speed optocouplers that deliver robust electrical signal isolation for intelligent power module (IPM) interface applications. The new ACPL-x484 optocouplers operate at 10 MBd and are available in three different compact packages to address IPM interfaces in AC and brushless DC motor drives, industrial inverters, air conditioners, renewable energy inverters, sewing machines and switching power supplies, as well as gate drive applications and general digital isolation.

With high common-mode rejection (CMR) of 30 kV/s, the devices prevent erroneous driving of an IPM and provide reliable operation in noisy environments. They offer fast switching with short propagation delays of 100 ns, resulting in reduced dead time, as well as improved efficiency and precision of motion. The optocouplers feature a wide supply voltage range from 4,5 V to 30 V, which ensures an IPM is driven to the optimum intended level and thus lowers system power budget.

The ACPL-M484 and ACPL-P484 offer input-output withstand voltage of 3750 Vrms while the ACPL-W484 offers 5000 Vrms, each for 1 minute for UL 1577 compliance. The devices meet IEC/EN/DIN EN 60747-5-2 approval with working voltage of 560 Vpeak for ACPL-M484, 891 Vpeak for ACPL-P484 and 1140 Vpeak for ACPL-W484.

For more information contact EBV Electrolink, +27 (0)21 402 1940, [email protected], www.ebv.com



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