Gate-drive optocoupler includes integrated flyback controller for DC-DC converters

Avago Technologies (San Jose, CA) unveiled the ACPL-302J, a new smart gate-drive optocoupler device that improves isolated power supply and simplifies gate drive design. The ACPL-302J features an integrated flyback controller for DC-DC converters and a full set of fail-safe IGBT diagnostics, protection and fault reporting, providing a complete and cost-effective gate drive solution. With a 2.5A rail-to-rail output, the device is ideal for driving IGBTs and power MOSFETs in industrial power inverters and motor drives. Other features include:

• Integrated active Miller clamp, IGBT DESAT detection, and Under Voltage Lock-Out (ULVO).
• Integrated flyback controller for isolated DC-DC converter.
• Rail-to-rail output with high current, improving power efficiency.
• Integrated short circuit protection, fault & UVLO feedback control circuit improving system reliability for driving and protecting IGBT.
• High reinforced insulation voltage of V_IORM = 1,230 V_PEAK for reliable fail-safe protection in high voltage applications.
• Wide creepage and clearance of 8.3 mm meeting stringent system level safety regulation.
• 30kV/µs min CMR preventing erroneous drive in noisy environment.
• Wide operating temperature from -40°C to +105°C.

For more information on the ACPL-302J, visit www.avagotech.com.

Avago is now Broadcom Limited. Avago Technologies supplies a wide range of analog, mixed-signal and optoelectronic components and subsystems. The types of products manufactured by Avago Technologies include Mobile Phone Products: Front-End Modules, Handset Power ICs, Duplexers and Filters, Low Noise Amplifiers (LNA), WLAN Power Amplifiers, and Detector Switches...

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