Optocouplers optimised for IGBT driving

The HCPL-3020 and HCPL-0302 are 0.2A gate drive optocouplers for low-power industrial inverters and inverter-controlled consumer appliances.

The HCPL-3020 and HCPL-0302 are 0.2A gate drive optocouplers for low-power industrial inverters and inverter-controlled consumer appliances.

Typical applications include air conditioners, washing machines, induction heaters for sealed range tops, and a wide variety of AC and brushless DC motor drives, inverters and switching power supplies.

These new devices complement Agilent's existing family of gate-drive optocouplers with 0.4, 0.5 and 2.0A drive capacities.

The Agilent HCPL-3020/HCPL-0302 optocouplers are an excellent low-cost alternative to high-voltage integrated circuits (HVICs) for IGBTs.

Unlike HVICs, Agilent's optocouplers, with their superior galvanic isolation, support a microcontroller that is fully isolated from the high-voltage portion of the inverter to help protect the user from shock hazards.

The Agilent devices feature a proprietary internal Faraday shield, which provides the best common-mode rejection (CMR) performance of any competing isolation solution.

The HCPL-3020 and HCPL-0302 incorporate a GaAsP LED optically coupled to an integrated circuit with a power output stage.

Their technical specifications include 0.2A minimum peak output current, high-speed response with 0.7us maximum propagation delay, and an ultra-high CMR of 10kV/us at a common-mode potential of 1kV.

The optocouplers also feature an operating temperature range of -40 to +100C, and a wide 10 to 30V power supply voltage over the full temperature range.

Their bootstrapable supply current of 3mA maximum eliminates the need for an expensive isolated power supply.

Superior isolation permits the HCPL-3020/0302 gate drive optocouplers to meet the most widely accepted international safety regulations.

They are recognised under UL1577; approved under CSA Component Acceptance Notice No 5; and approved according to VDE 0884/06.92 (including Certificate R9650938 for TUV/Rhineland).

The HCPL-3020 is supplied in an 8-pin dual-inline package (DIP), and the HCPL-0302 in the SO-8 miniature surface-mount package.

The HCPL-3020 is immediately available and the HCPL-0302 will be available in June 2003 through Agilent's direct sales channel, and through Agilent's worldwide distribution partners.

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